正整数是自然数，这句话对吗？

0不是正整数。0只是整数。整数（integer）就是像-3,-2,-1,0,1,2,3,10等这样的数。整数的全体构成整数集，整数集是一个数环。在整数系中，零和正整数统称为自然数。-1、-2、-3、?、-n、?（n为非零自然数）为负整数。则正整数、零与负整数构成整数系。整数不包括小数、分数。扩展资料：以0为界限，将整数分为三大类：1、正整数，即大于0的整数如，1，2，3······直到。2、零，既不是正整数，也不是负整数，它是介于正整数和负整数的数。3、负整数，即小于0的整数如，-1，-2，-3······直到。（n为正整数）。现中学数学教材(2005年)中规定：零和正整数统称自然数。整数也可分为奇数和偶数两类。

0不是正整数。0既不是正整数，也不是负整数，它是介于正整数和负整数的数，0是介于-1和1之间的整数，是最小的自然数，也是有理数，是正数和负数的分界点。0被认为是自然数是因为自然数不仅是整数，还要包括0这个数。自然数的概念最初起源于人类计数的需求，包含着基本的数学原理和逻辑思维方式。在日常生活中，0可以表示没有或零个，因此无论在理论还是实际应用上，都与其他自然数有很大的联系和作用。但是由于0具有一些特殊的性质，因此它也会带来一些不同于其他自然数的特殊问题。比如，在除法运算中，如果分母为0，则这个式子是没有意义的；而在减法运算中，0可以被视为一个“反向”的数，即减去0相当于加上0，这对一些数论问题的处理带来了开阔的思路。不仅如此，在代数学、微积分中，0也有着重要的作用。对于一些关键性问题，特别是极限和趋势分析的研究，0被认为是非常重要的数值。比如，在导数的计算中，通过求解极限的方法可以得到非常精确的答案；在微分方程中，0也是重要的方程根。虽然0在一些方面与其他自然数有所不同，但它同样也被认为是自然数的一部分。因此，在许多领域中，0都扮演着至关重要的角色，并且有着独具特色的数学应用。同时，0还具有一些特殊的性质和规律。在数论中，0是几乎所有数字的因数。任何一个数乘以0得到的结果都是0。因此，0是任何环上的零元素，也是乘法幺元素唯一缺失的那个正整数。在计算机科学和信息技术中，0也是非常重要的数字之一。比如，在编程语言和软件开发中，0经常出现在计数、索引、条件判断和错误处理等方面。此外，从另一个角度来看，0也可以被解释为不存在的数量。在某些情况下，0可以被视为一个抽象化的概念，用来表示某些数值、函数或数据不存在或无效。这在逻辑推理和形式化方法的研究中具有重要的作用。例如，在描述程序正确性和安全性时，通过引入“null”和“void”这样的抽象概念，可以更加精确地刻画系统状态和行为。总而言之，虽然0具有一些特殊的性质和用途，但它仍然被认为是自然数的一部分。0作为自然数之一，是现代数学、物理学和计算机科学中不可或缺的基础概念。无论是从理论的角度还是实践应用的角度，0都在不同的领域中发挥着重要作用，并且具有着独特而丰富的数学内涵和思维方式。

0不是正整数。一、0的关系0是正数和负数的分界点，0没有倒数，0的相反数是0，0的绝对值是0，0的平方根是0，0的立方根是0，0乘任何数都等于0，除0之外任何数的0次方等于1。0不能作为分母出现，0的所有倍数都是0，0不能作为除数，0除以任何非零实数等于0。二、整数整数是正整数、零、负整数的集合。整数的全体构成整数集，整数集是一个数环。整数不包括小数知、分数。如果不加特殊说明，所涉及的数都是整数，所采用的字母也表示整数。整数也可分为奇数和偶数道两类。整数中，能够被2整除的数，叫做偶数。不能被2整除的数则叫做奇数。若有限个整数之积为奇数，则其中每个整数都是奇数；若有限个整数之积为偶数，则这些整数回中至少有一个是偶数；两个整数的和与差具有相同的奇偶性；一个整数的平方根若是整数，则两者具有相同的奇偶性。0的历史故事：0是极为重要的数字，0的发现被称为人类伟大的发现之一。0在我国古代叫做金元数字，（意思即极为珍贵的数字）。0这个数据说是由印度人在约公元5世纪时发明，在1202年时，一个商人写了一本算盘之书，在东方中由于数学是以运算为主西方当时以几何并在开头写了“印度人的9个数字，加上阿拉伯人发明的0符号便可以写出所有数字。”0的性质：0既不是正数也不是负数，而是正数和负数之间的一个数，且为正数和负数的分界线。当某个数X大于0（即X>0）时，称为正数；反之，当X小于0（即X<0）时，称为负数；而这个数X等于0时，这个数就是0。

0是整数，但并不是正整数。正整数，为大于0的整数，也是正数与整数的交集。正整数可带正号（+），也可以不带。如：+1、+6、3、5，这些都是正整数。整数的概念。整数，不管是像1、2、3、4等特别小的数，还是像10001、10002那种特别大的数，只要它与前一个整数或者后一个整数相差为1，那么它就是整数，所以0它是一个整数。在数学的语法里面，所有的整数形成一个整数集，作为经常被提到并用到的0，自然也在这个集合里面。整数又分为正整数和负整数，像-888，-999，-852，-777等都是负整数，表现在形式上就是在整数前面有一个“-”的符号。而正数就是例如85，98，999，8521等除0以外的不带“-”的整数都是正整数。其实它们前面都有一个“+”，类似于负数里面的“-”用来表示类型，只不过通常会被省略。“-”表示负数，而“+”表示正数，这样说起来0似乎可以表现为+0和-0，但是这是不可行的，因为0既不是正数也不是负数，它属于第三类。整数分为负整数、正整数和0，三大类，所以0既不是正数也不是负数。换句话说，正整数必须同时具备正数和整数两个条件，0虽然是整数但是它不是正数，这就很清楚了，0不是正整数。数学思维训练转化型这是解决问题遇到障碍，受阻时把问题由一种形式转换成另一种形式，使问题变得更简单、更清楚，以利解决的思维形式。在教学中，通过该项训练，可以大幅度地提高学生解题能力。系统型这是把事物或问题作为一个系统从不同的层次或不同的角度去考虑的高级整体思维形式。在高年级除结合综合应用题以外还可编制许多智力训练题来培养学生系统思维能力。激化型这是一种跳跃性、活泼性、转移性很强的思维形式。教师可通过速问速答来训练练学生。如问：3个5相加是多少?学生答：5+5+5=15或5×3=15。教师又问：3个5相乘是多少?学生答：5×5×5=125。紧接着问：3与5相乘是多少?学生答：3×5=15，或5×3=15。通过这样的速问速答的训练，发现学生思维越来越活跃，越来越灵活，越来越准确。类比型这是一种对并列事物相似性的同实质进行识别的思维形式。这项训练可以培养学生思维的准确性。如：①金湖粮店运来大米6吨。比运来的面粉少1/4吨、运来面粉多少吨?②金湖粮店运来大米6吨，比运来的面粉少1/4，运来面粉多少吨?以上两题，虽然相似，实质不同，一字之差，解法全异，可以点拨学生自己辨析。通过训练，学生今后碰到类似的问题便会仔细推敲，这样就大大地提高了解题的准确性。

0不是正整数0的数学性质：1、0是最小的自然数。2、0能被任何非零整数整除。3、0不是奇数，而是偶数（一个非正非负的特殊偶数）。4、0在多位数中起占位作用，如108中的0表示十位上没有，切不可写作18。5、0既不是正数也不是负数，而是正数和负数的分界点。当某个数X大于0（即X>0）时，称为正数；反之，当X小于0（即X<0）时，称为负数；而这个数X等于0时，这个数就是0。6、0是介于-1和1之间的整数。7、0没有倒数8、0的绝对值是其本身，即，∣0∣=0。

　　0不是正整数，大于0的自然数是正整数。 　　整数包括0、负整数、正整数。 　　自然数用以计量事物的件数或表示事物次序的数。表示物体个数的数叫自然数，自然数由0开始，一个接一个，组成一个无穷的集体。自然数有有序性，无限性。分为偶数和奇数，合数和质数等。

正整数为大于 0的整数，也是正数和整数的交集。正整数通常用N+表示，可带正号（+），也可以不带。正整数可分为质数、1和合数。0既不是正整数，也不是负整数。正整数集是所有正数和整数的数的集合，包括从1开始的所有自然数。通常用符号N + 、 N*、N1、N>0表示。 整数可分为三大类： 1 、 正整数，即大于 0的整数，如，1，2， 3 … N。 2. 、 0既不是正整数，也不是负整数（0是整数）。 3 、 负整数，即小于 0的整数，如，-1，-2，-3… -N。

是。非正整数指非正的整数，即负整数和0。非正整数乘于-1会得到一个非负整数。非正整数的和仍是非正整数。若非正整数的和为零，则其中每个非正整数必等于零。若非正整数的积为零，则其中至少有一个非正整数为零。 整数 就是像0、1、2、3、-10、1、3、10等这样的数。 整数的全体构成整数集，整数集是一个数环。在整数系中，零和正整数统称为自然数。-1、-2、-3、…、-n、…(n为非零自然数)为负整数。则正整数、零与负整数构成整数系。整数不包括小数，分数。 整数的分类 以0为界限，将整数分为三大类 1、正整数：即大于0的整数如：1，2，3······等等。 2、零：既不是正整数，也不是负整数，它是介于正整数和负整数的数。 3、负整数：即小于0的整数如：-1，-2，-3······等等。

正数不包括 0，包括分数和小数

我认为0和自然数都是整数这句话不够严谨，因为0既然自然数，那么整数的定义应为自然数都是整数。

YES

整数包括正整数、负整数和零零也是自然数

有理数是一个整数a和一个正整数b的比，例如3/8，通则为a/b。0也是有理数。有理数为整数（正整数、0、负整数）和分数的统称 。正整数和正分数合称为正有理数，负整数和负分数合称为负有理数。因而有理数集的数可分为正有理数、负有理数和零。由于任何一个整数或分数都可以化为十进制循环小数，反之，每一个十进制循环小数也能化为整数或分数，因此，有理数也可以定义为十进制循环小数。注意：通常把正数和0统称为非负数，负数和0统称为非正数，正整数和0称为非负整数（也叫做自然数），负整数和0统称为非正整数。如果用字母表示数，则a＞0表明a是正数；a＜0表明a是负数；a 0表明a是非负数；a 0表明a是非正数。扩展资料1、有理数加法法则：（1）同号两数相加，取相同的符号，并把绝对值相加；（2）异号两数相加，取绝对值较大的符号，并用较大的绝对值减去较小的绝对值；（3）一个数与0相加，仍得这个数。2、有理数加法的运算律：（1）加法的交换律：a+b=b+a；（2）加法的结合律：（a+b）+c=a+（b+c）。3、有理数减法法则：减去一个数，等于加上这个数的相反数；即a-b=a+（-b）。4、有理数乘法法则：（1）两数相乘，同号为正，异号为负，并把绝对值相乘；（2）任何数同零相乘都得零；（3）几个数相乘，有一个因式为零，积为零；各个因式都不为零，积的符号由负因式的个数决定。5、有理数除法法则：除以一个数等于乘以这个数的倒数；注意：零不能做除数，a/0没有意义。

0是正整数，力也是白三自然数

0是整数，但并不是正整数。和整数一样，正整数也是一个可数的无限集合。在数论中，正整数，即1、2、3……；但在集合论和计算机科学中，自然数则通常是指非负整数，即正整数与0的集合，也可以说成是除了0以外的自然数就是正整数。正整数又可分为质数，1和合数。正整数可带正号（+），也可以不带。 以0为界限，将整数分为三大类： 1、正整数，即大于0的整数如，1，2，3······直到。 2、零，既不是正整数，也不是负整数，它是介于正整数和负整数的数。 3、负整数，即小于0的整数如，-1，-2，-3······直到。（n为正整数） 注：现中学数学教材(2005年)中规定：零和正整数统称自然数。 正整数的定义 正整数，为大于0的整数，也是正数与整数的交集。正整数又可分为质数，1和合数。正整数可带正号（+），也可以不带。如：+1、+6、3、5，这些都是正整数。0既不是正整数，也不是负整数（0是整数）。

0是整数，但并不是正整数。0既不是正数也不是负数，而是正数和负数之间的一个数，且为正数和负数的分界线。当某个数X大于0（即X>0）时，称为正数；反之，当X小于0（即X<0）时，称为负数；而这个数X等于0时，这个数就是0。0不能做除数（分母、后项）的原因*1如果除数（分母、后项）是0，被除数是非零自然数时，商不存在。这是由于任何数乘0都不会得出非零自然数。*2如果被除数除数（分母、后项）都等于0，在这种情况下，商不唯一，可以是任何数。这是由于任何数乘0都等于0。

不属于。0是整数，但并不是正整数。正整数，为大于0的整数，也是正数与整数的交集。正整数可带正号（+），也可以不带。如：+1、+6、3、5，这些都是正整数。 将整数分为三大类 1.正整数，即大于0的整数，如，1，2，3，…，n，… 2.0既不是正整数，也不是负整数（0是整数）。 3.负整数，即小于0的整数，如，-1，-2，-3，…，-n，…由此可见正整数不包括0。 正整数 和整数一样，正整数也是一个可数的无限集合。在数论中，正整数，即1、2、3……；但在集合论和计算机科学中，自然数则通常是指非负整数，即正整数与0的集合，也可以说成是除了0以外的自然数就是正整数。正整数又可分为质数，1和合数。正整数可带正号（+），也可以不带。

不属于正整数。

零不是正整数。1、原因：整数是正整数、零与负整数构成整数系。整数的全体构成整数集，整数集是一个数环。在整数系中，零和正整数统称为自然数。整数不包括小数、分数。2、整数的分类：（1）正整数，即1、2、3…、n、…（n为非零自然数）。正整数又可分为质数，1和合数。正整数可带正号（+），也可以不带。（2）零，既不是正整数，也不是负整数，它是介于正整数和负整数的数。（3）负整数，即小于0的整数如，-1，-2，-3…、-n、…（n为非零自然数）。正整数和0的定义及含义：一、正整数的定义：为大于0的整数，也是正数与整数的交集。正整数又可分为质数，1和合数。正整数可带正号（+），也可以不带。如：+1、+6、3、5，这些都是正整数。0既不是正整数，也不是负整数（0是整数）。二、0的定义：是自然数之一，是介于-1和1之间的整数，是最小的自然数，也是有理数。0既不是正数也不是负数，而是正数和负数的分界点。三、0的含义：1、0是最小的自然数。2、0能被任何非零整数整除。3、0不是奇数，而是偶数（一个非正非负的特殊偶数）。4、0不是质数，也不是合数。5、0在多位数中起占位作用，如108中的0表示十位上没有，切不可写作18。6、0不可作为多位数的最高位。不过有些编号中需要前面用0补全位数。7、0既不是正数也不是负数，而是正数和负数的分界点。当某个数X大于0（即）时，称为正数；反之，当X小于0（即）时，称为负数；而这个数X等于0时，这个数就是0。8、0是介于-1和1之间的整数。

在初中数学里，“0”是自然数。在九年义务教育教材里，已经规定了“0”是自然数，九年义务教育教材里，把“0”归为自然数了，最小的自然数是0。自然数是从0开始的，例如：0、1、2、3、4、5、6、7、8、9、10、11、12、13等等。扩展资料：自然数是指表示物体个数的数，即由0开始，0，1，2，3，4，5，6，7，8，9，10，11，12等等一个接一个，组成一个无穷的集体，即指非负整数。注：整数包括自然数，所以自然数一定是整数，且一定是非负整数。但相减和相除的结果未必都是自然数，所以减法和除法运算在自然数集中并不总是成立的。用以计量事物的件数或表示事物次序的数。即用数码0，1，2，3，4，??所表示的数。表示物体个数的数叫自然数，自然数一个接一个，组成一个无穷集体。自然数集有加法和乘法运算，两个自然数相加或相乘的结果仍为自然数，也可以作减法或除法，但相减和相除的结果未必都是自然数，所以减法和除法运算在自然数集中并不是总能成立的。两个可以在元素之间建立一一对应关系的有限集具有共同的数量特征，这一特征叫做基数这样，所有单元素集{x}，{y}，{a}，{b}等具有同一基数，记作1。类似，凡能与两个手指头建立一一对应的集合，它们的基数相同，记作2，等等。自然数的加法、乘法运算可以在序数或基数理论中给出定义，并且两种理论下的运算是一致的。自然数是整数（自然数包括正整数和零），但整数不全是自然数，例如：-1-2-3......是整数而不是自然数。自然数是无限的。全体非负整数组成的集合称为非负整数集，即自然数集。在数物体的时候，数出的1.2.3.4.5.6.7.8.9??叫自然数。自然数有数量、次序两层含义，分为基数、序数。基本单位：计数单位：个、十、百、千、万、十万等等。参考资料来源：百度百科-自然数

没有。整数分为：【正数、0、负数】。一、一个物体也没有，用0表示。0和1、2、3...．都是自然数。自然数是整数。二、最小的一位数是1，最小的自然数是0。三、零上4摄氏度记作＋4°℃；零下4摄氏度记作﹣4℃。"+4"读作正四。"-4"读作负四。+4也可以写成4。四、像+4、19、+8844这样的数都是正数。像﹣4、-11、-7、-155这样的数都是负数。五、0既不是正数，也不是负数。正数都大于0，负数都小于0。六、通常情况下，比海平面高用正数表示，比海平面低用负数表示。七、通常情况下，盈利用正数表示，亏损用负数表示。八、通常情况下，上车人数用正数表示，下车人数用负数表示。九、通常情况下，收入用正数表示，支出用负数表示。十、通常情况下，上升用正数表示，下降用负数表示。

0是自然数呀！

型钢可以看做H型钢的一半，比如100*100是H型钢200*100的一半重量，200*200重量=400*200的一半（前提：厚度一样）150*150=300*150重量一半H型钢重量计算公式热轧H型钢理论重量计算公式：热轧H型钢理论重量=<hd+2r(b-d)+0.8584(r2-r12)>*L*7.85*1/1000 其中 h----高度（MM），b----脚宽（MM），d----腰厚（MM），r----内面圆角半径（MM）r1----边端圆角半径（MM），L-----长度（M）

1. 我最喜欢的食物英语作文 My favourite food is cake.because it is very delicious.Although cake is very sweet,it looks very beautiful.On my birthday,my mother bought a cake for me.L"m very happy.There are some things on the cake. For example ,some fruit and some chocolate .l also like chocolate very much . Cake is my favourite . 中文大意是：我最喜欢的食物是蛋糕，因为它很美味。虽然蛋糕很甜，但它看上去很漂亮。在我的生日，我妈妈买给我一个蛋糕。我非常开心。有许多东西在蛋糕上。例如：一些水果和巧克力。我也非常喜欢吃巧克力。蛋糕是我最喜欢的食物。 2. 英语作文我喜欢的食物 My Favorite Food In our country, there are plenty of delicious foods. They are popular among Chinese people. I like eating very much. There are many food I like, such as chicken, fish, beef, tofu, noodle and so on. Among them, fish and tofu are the food I like most. Fish is delicious as well as rich in nutrition. It"s good to our health. There are various cooking methods and I think the simplest way is the best one. Tofu is my favorite as well. It can be cooked with many other dishes. Different tastes bine with each other to make the food more delicious. 3. 一篇英语作文《我最喜欢的东西》 给你提供三篇，自己选择一下吧.1My name"s Oliver.I"m a 15-year-old student of medium build.I"m outgoing.The thing that I like best is a bike.The bike is very special.It"s a little different from other bikes.It"s a bit bigger.When I was 12 years old my parents gave it to me as a birthday present.How happy I was that day!Now I often ride it to school and on weekends I ride it to the sports club to play sports.When I e home I clean it carefully.I love my bike and I love my parents.2Hi.I"m a student of 14.My name"s Sue.I"m of medium height and very popular in my class.I"ve got many things but I like my pen best.The pen is beautiful.It is black.It"s one of the presents that I"ve got.Last year I got a C in English and I was very sad.My English teacher gave the pen to me and encouraged me to study hard.From then on I spent more time studying English.Now I have made great progress in English and I enjoy learning English.I love my pen and I live my English teacher.3.My favourite thingsMy favourite things are books and apples.Why do I like books so much?Because I can learn a lot of things from books.If I read more and more books,I will know more and more things about the world.Books are useful for us.Why do I like apples so much?Because apples are very tasty.It"s very good for us to eat apples often.so,My favourite things are books and apples.。 4. 用英语写一篇我喜欢的食物的短文 My Favorite Food My favorite food are vegetables.I eat them every day.As we know, vegetables can give us a lot of vitamins and cellulose.They can help us to keep fit.Everyone needs to eat plenty of vegetables.If we don"t eat enough vegetables.We will be ill easier.So we had better like to eat vegetables. 我最喜欢的食物 我最喜欢的食物是蔬菜。我每天都吃它们。大家都知道，蔬菜能给我们大量的维生素和纤维素。它们能帮助我们保持健康。每人都需要吃充足的蔬菜，否则我们会很容易生病。所以我们最好喜欢上吃蔬菜 5. 以我喜欢的食物为题,写一篇英语作文,谢谢 In our country, there are plenty of delicious foods. They are popular among Chinese people. I like eating very much. There are many food I like, such as chicken, fish, beef, tofu, noodle and so on. Among them, fish and tofu are the food I like most.更多去英语作文网 看看。 开。 6. 用我最喜欢的食物写一篇50字作文用英文 My favourite food is rice, I eat rice everyday. Rice is originated in China almost all the chinese people eats rice everyday. It is white and *** all, before you cook it, it"s hard, but after you cook it with water, it"s soft and tasty. People usually eat rice with something else, food like meat, vegetables, fishes and all other kind of foods, because it tastes even better than eating only rice when you eat it with other things. Thats why i love to eat rice. It is a healthy food and everybody should try it out.。 7. 用我最喜欢的食物写一篇50字作文用英文.写 My favourite food is cake.because it is very delicious.Although cake is very sweet,it looks very beautiful.On my birthday,my mother bought a cake for me.L"m very happy.There are some things on the cake.For example ,some fruit and some chocolate .l also like chocolate very much .Cake is my favourite 。 8. 我最喜欢的食物英语作文 My favourite food is cake.because it is very delicious.Although cake is very sweet,it looks very beautiful.On my birthday,my mother bought a cake for me.L"m very happy.There are some things on the cake. For example ,some fruit and some chocolate .l also like chocolate very much . Cake is my favourite food.我最喜百欢的食物是蛋糕，因为它很美味。 虽然蛋糕很甜，但它看上去很漂亮。在我的生日，我妈度妈买给我一个蛋糕。 我非常开心。有许多东西在蛋糕上。 例如：内一些水果和巧克力。我也非常喜欢吃巧克力。 蛋糕是我最喜欢的食物。容。

歌曲名:My Favourite Things歌手:Junior Jazz专辑:Junior JazzTonight Alive - My Favourite Thingi fall at the thoughtof us falling apartbut i swore never to use my head,before i use my heartand then you"ll keep me breathing,grant me ? through the nightmy dear, i hope your dreams are sweet as real lifecos this, my favorite thing by farand you define everything i"ve ever knownbut why, do you believe in fate,do you believe in destiny,would you believe me if i told you,you complete me.whoaaaaai don"t see this lightly.so don"t take this lightly.but why, why me, when you could have had anybodyhi, nice to meet you,was it nice to meet me too.don"t tell me the things,that you think i want to hear.just tell me the truth,and the whole truth,your thoughts and your hopesand your dreams and your fears.cos i don"t have time to waste,if all that you"re looking for is to chase,don"t make me be just another mistake,but still it"s a chance that i"m willing to take, for you.for you.its all for you.this, my favorite thing by farwas it nice to meet me.http://music.baidu.com/song/2871250

歌曲名:My Favourite Things歌手:Betty Carter专辑:Inside Betty CarterTonight Alive - My Favourite Thingi fall at the thoughtof us falling apartbut i swore never to use my head,before i use my heartand then you"ll keep me breathing,grant me ? through the nightmy dear, i hope your dreams are sweet as real lifecos this, my favorite thing by farand you define everything i"ve ever knownbut why, do you believe in fate,do you believe in destiny,would you believe me if i told you,you complete me.whoaaaaai don"t see this lightly.so don"t take this lightly.but why, why me, when you could have had anybodyhi, nice to meet you,was it nice to meet me too.don"t tell me the things,that you think i want to hear.just tell me the truth,and the whole truth,your thoughts and your hopesand your dreams and your fears.cos i don"t have time to waste,if all that you"re looking for is to chase,don"t make me be just another mistake,but still it"s a chance that i"m willing to take, for you.for you.its all for you.this, my favorite thing by farwas it nice to meet me.http://music.baidu.com/song/3471034

到书店买本《实用五金手册》，想查什么就查什么。一辈子使用。

歌曲名:My Favourite Things (The Sound Of Music Musical)歌手:Gracie Fields专辑:Centenary CelebrationsTonight Alive - My Favourite Thingi fall at the thoughtof us falling apartbut i swore never to use my head,before i use my heartand then you"ll keep me breathing,grant me ? through the nightmy dear, i hope your dreams are sweet as real lifecos this, my favorite thing by farand you define everything i"ve ever knownbut why, do you believe in fate,do you believe in destiny,would you believe me if i told you,you complete me.whoaaaaai don"t see this lightly.so don"t take this lightly.but why, why me, when you could have had anybodyhi, nice to meet you,was it nice to meet me too.don"t tell me the things,that you think i want to hear.just tell me the truth,and the whole truth,your thoughts and your hopesand your dreams and your fears.cos i don"t have time to waste,if all that you"re looking for is to chase,don"t make me be just another mistake,but still it"s a chance that i"m willing to take, for you.for you.its all for you.this, my favorite thing by farwas it nice to meet me.http://music.baidu.com/song/2740488

体积乘以密度（每立方7.85吨）就是重量H型钢服板和翼板一般情况都不一样宽当然不是绝对

歌曲名:My Favorite Things歌手:Betty Carter专辑:Jazz Legends - Our Favourite Things/A Touch Of Romance/The Wee Small HouseRaindrops on roses and whiskers on kittens,bright copper kettles and warm woolen mittens,brown paper packages tied up with strings,these are a few of my favorite things.Cream colored ponies and crisp apple strudels,door bells and sleigh bells and schnitzel with noodles.Wild geese that fly with the moon on their wings.these are a few of my favorite things.Girls in white dresses with blue satin sashes,snowflakes that stay on my nose and eyelashes,silver white winters that melt into springs,these are a few of my favorite things.When the dog bites, when the bee stings,when I"m feeling sad,I simply remember my favorite things,and then I don"t feel so bad.Raindrops on roses and whiskers on kittens,bright copper kettles and warm woolen mittens,brown paper packages tied up with strings,these are a few of my favorite things.Cream colored ponies and crisp apple strudels,door bells and sleigh bells and schnitzel with noodles.Wild geese that fly with the moon on their wings.these are a few of my favorite things.Girls in white dresses with blue satin sashes,snowflakes that stay on my nose and eyelashes,silver white winters that melt into springs,these are a few of my favorite things.When the dog bites, when the bee stings,when I"m feeling sad,I simply remember my favorite things,and then I don"t feel so bad.http://music.baidu.com/song/8577723

myfavourite

可以看下五金手册 上面有

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歌曲名:Favourite Things歌手:Connie Talbot专辑:Over The RainbowFavourite Things-Connie Talbot《Over The Rainbow》Raindrops on roses and whiskers on kittensBright copper kettles and warm woolen mittensBrown paper packages tied up with stringThese are a few of my favourite thingsGirls in white dresses with blue satin sashesSnowflakes that stay on my nose and eye lashesSilver white winters that melt into springThese are a few of my favourite things!When the dog bites, when the bee stingsWhen I"m feeling sad I simply remember my favourite thingsand then I don"t feel so bad!Cream colored ponies and crisp apple strudelsDoorbells and slay bells and schnitzel with noodlesWild gees that fly with the moon en their wingsThese are a few of my favourite thingsGirls in white dresses with blue satin sashesSnowflakes that stay on my nose and eye lashesSilver white winters that melt into springThese are a few of my favourite things!When the dog bites, when the bee stingsWhen I"m feeling sad I simply remember my favourite things!and then I don"t feel so bad!http://music.baidu.com/song/1322329

在商务谈判中,最长用的表示"好处和利益"的词是interest

I am Susan Kelly, do you need any help? if you copy the article above, you will get zero.

300宽的是腹板，钢板厚度是8mm，200宽的是翼缘板，厚度是12mm，计算方法：300×H型钢长度×8mm钢板的理论重量；200×2×H型钢长度×12mm钢板的理论重量；两个重量加起来就行了

【歌名】My Favourite Things【歌手】Olivia Ong【发行时间】2008-08-20【所属专辑】《BEST OF》【歌词】My Favorite Things - Olivia OngRaindrops on roses and whiskers on kittens"bright copper kettles and warm woolen mittens"brown paper packages tied up with strings"these are a few of my favorite things.Cream colored ponies and crisp apple strudels"door bells and sleigh bells and schnitzel with noodles.Wild geese that fly with the moon on their wings.these are a few of my favorite things.Girls in white dresses with blue satin sashes"snowflakes that stay on my nose and eyelashes"silver white winters that melt into springs"these are a few of my favorite things.When the dog bites" when the bee stings"when I"m feeling sad"I simply remember my favorite things"and then I don"t feel so bad.

给你提供三篇，自己选择一下吧。 1 My name"s Oliver. I"m a 15-year-old student of medium build. I"m outgoing. The thing that I like best is a bike. The bike is very special. It"s a little different from other bikes. It"s a bit bigger. When I was 12 years old my parents gave it to me as a birthday present. How happy I was that day! Now I often ride it to school and on weekends I ride it to the sports club to play sports. When I come home I clean it carefully. I love my bike and I love my parents. 2 Hi. I"m a student of 14. My name"s Sue. I"m of medium height and very popular in my class. I"ve got many things but I like my pen best. The pen is beautiful. It is black. It"s one of the presents that I"ve got. Last year I got a C in English and I was very sad. My English teacher gave the pen to me and encouraged me to study hard. From then on I spent more time studying English. Now I have made great progress in English and I enjoy learning English. I love my pen and I live my English teacher.3. My favourite things My favourite things are books and apples. Why do I like books so much? Because I can learn a lot of things from books. If I read more and more books,I will know more and more things about the world.Books are useful for us. Why do I like apples so much? Because apples are very tasty.It"s very good for us to eat apples often. so,My favourite things are books and apples.希望能帮到你，祝更上一层楼O(∩_∩)O

给你提供三篇,自己选择一下吧. 1 My name"s Oliver.I"m a 15-year-old student of medium build.I"m outgoing. The thing that I like best is a bike.The bike is very special.It"s a little different from other bikes.It"s a bit bigger.When I was 12 years old my parents gave it to me as a birthday present.How happy I was that day!Now I often ride it to school and on weekends I ride it to the sports club to play sports.When I come home I clean it carefully. I love my bike and I love my parents. 2 Hi.I"m a student of 14.My name"s Sue.I"m of medium height and very popular in my class. I"ve got many things but I like my pen best.The pen is beautiful.It is black.It"s one of the presents that I"ve got.Last year I got a C in English and I was very sad.My English teacher gave the pen to me and encouraged me to study hard.From then on I spent more time studying English.Now I have made great progress in English and I enjoy learning English. I love my pen and I live my English teacher. 3. My favourite things My favourite things are books and apples. Why do I like books so much?Because I can learn a lot of things from books.If I read more and more books,I will know more and more things about the world.Books are useful for us. Why do I like apples so much?Because apples are very tasty.It"s very good for us to eat apples often. so,My favourite things are books and apples.

1、c型钢主要用于大中型工业民用建筑的主体受力结构，如厂房、 仓库、体育场馆、集市花棚等屋面承重荷载和墙面支撑，是建筑中不可缺少的钢材之一。现为大家附上C型钢的重量表和规格表，基本尺寸及主要参数：h:高度，b:中腿边长，a：小腿边长，t：厚度。2、镀锌C型钢、热镀锌电缆桥架C型钢、 玻璃卡槽C型钢、玻璃幕墙C型钢、走线槽C型钢、 加筋C型钢、双抱C型钢、单边C型钢、 手动叉车C型钢、 不等边C型钢、直边C型钢、斜边C型钢、内卷边C型钢、内斜边C型钢、屋面(墙面)檩条C型钢、汽车型材C型钢、高速公路立柱C型钢、太阳能支架C型钢(21-80系列)、 模板支撑C型钢、设备用精密C型钢等等。

C型钢的国标名称为“冷弯内卷边槽钢”。所标尺寸为外形尺寸。其角圆弧R按钢板厚度取确定数值，当厚度<4mm时，Q235取1.5-2.5倍板厚；Q345取2.0-3.0倍板厚。以C100X50X20X2.5为例，由于所列板厚最薄为2.25mm，该例取1.8倍板厚，则R=2.5X1.8=4.5mm。展开长度=（20-4.5）x2+（50-9）x2+（100-9）+（9-2.5）x3.1416=224.4204mmx2.5x7.85g=4404g/m。国标重量4.325kg/m。列方程解R：R=6.85=2.74X2.5。至于国标如何取值，目前还没有看到说明。c 型钢理论重量表型号 　 每米重(kg) 型号 每米重(kg)C 80×50×20×2.25 3.886 C 180×60×20×3.0 8.007 C 80×50×20×2.50 4.318 C 180×70×20×3.0 8.478 C 80×50×20×2.75 4.749 C 180×80×20×3.0 8.949 C 80×50×20×3.00 5.181 C 200×50×20×2.5 6.673 C 100 ×50 × 20 ×2.25 4.239 C 200 × 60 × 20 × 2.5 7.065 C 100 ×50 × 20 × 2.50 4.710 C 200 × 70 × 20 × 2.5 7.458 C 100 ×50 × 20 × 2.75 5.181 C 200 × 80 × 20 × 2.5 7.850 C 100 ×50 × 20 × 3.00 5.652 C 200 × 50 × 20 × 3.0 8.007 C 120 ×50 × 20 × 2.25 4.592 C 200 × 60 × 20 × 3.0 8.478 C 120 ×50 × 20 × 2.50 5.103 C 200 × 70 × 20 × 3.0 8.949 C 120 ×50 × 20 × 2.75 5.613 C 200 × 80 × 20 × 3.0 9.420C 120 ×50 × 20 × 3.00 6.123 C 220 × 50 × 20 × 2.5 7.065 C 140 ×50 × 20 × 2.50 5.495 C 220 × 60 × 20 × 2.5 7.458 C 140 ×60 × 20 × 2.50 5.888 C 220 × 70 × 20 × 2.5 7.850 C 140 ×50 × 20 × 3.00 6.594 C 220 × 80 × 20 × 2.5 8.243 C 140 ×60 × 20 × 3.00 7.065 C 220 × 50 × 20 × 3.0 8.478 C 160 ×50 × 20 × 2.50 5.888 C 220 × 60 × 20 × 3.0 8.949 C 160 ×60 × 20 × 2.50 6.280 C 220 × 70 × 20 × 3.0 9.420 C 160 × 70× 20 × 2.50 6.673 C 220 × 80 × 20 × 3.0 9.891 C 160 ×50 × 20 × 3.00 7.065 C 240 × 50 × 20 × 2.5 7.458 C 160 ×60 × 20 × 3.00 7.536 C 240 × 60 × 20 × 2.5 7.850 C 160 ×70 × 20 × 3.00 8.007 C 240 × 70 × 20 × 2.5 8.243 C 180 ×50 × 20 × 2.50 6.280 C 240 × 80 × 20 × 2.5 8.635 C 180 ×60 × 20 × 2.50 6.673 C 240 × 50 × 20 × 3.0 8.949 C 180 ×70 × 20 × 2.50 7.065 C 240 × 60 × 20 × 3.0 9.420 C 180 ×80 × 20 × 2.50 7.458 C 240 × 70 × 20 × 3.0 9.891 C 180 ×50 × 20 × 3.00 7.536 C 240 × 80 × 20 × 3.0 10.362

1. 写一篇我最喜欢的东西的英语作文 My favorite animal is a panda. The panda looks like a bear or a polar bear . I think the panda is very cute and lovely, and is very strong and heavy. They can walk and they can climb up trees. They live in China. I like them. Panda is one of the scarcest animals. People in the world like it very much. There used to be many pandas in China long ago. As the balance of nature was destroyed and the weather was getting warmer and warmer, pandas became fewer. But at present, the number of pandas is increasing year by year. There are now so many pandas that some are being sent to other countries so that people there can enjoy them. Nowadays, the biggest nature park for panda in China is in Sichuan. There is a research centre for nature and wild life there. Scientists hope that one day they will have enough pandas to be set free and let them live in the wild again. 2. 英语作文我最喜欢的东西 My favourite things My favourite things are books and apples. Why do I like books so much? Because I can learn a lot of things from books. If I read more and more books,I will know more and more things about the world.Books are useful for us. Why do I like apples so much? Because apples are very tasty.It"s very good for us to eat apples often. so,My favourite things are books and apples. 3. 一篇英语作文 《我最喜欢的东西》 给你提供三篇，自己选择一下e799bee5baa6e59b9ee7ad9431333335313066吧。 1 My name"s Oliver. I"m a 15-year-old student of medium build. I"m outgoing. The thing that I like best is a bike. The bike is very special. It"s a little different from other bikes. It"s a bit bigger. When I was 12 years old my parents gave it to me as a birthday present. How happy I was that day! Now I often ride it to school and on weekends I ride it to the sports club to play sports. When I e home I clean it carefully. I love my bike and I love my parents. 2 Hi. I"m a student of 14. My name"s Sue. I"m of medium height and very popular in my class. I"ve got many things but I like my pen best. The pen is beautiful. It is black. It"s one of the presents that I"ve got. Last year I got a C in English and I was very sad. My English teacher gave the pen to me and encouraged me to study hard. From then on I spent more time studying English. Now I have made great progress in English and I enjoy learning English. I love my pen and I live my English teacher. 3. My favourite things My favourite things are books and apples. Why do I like books so much? Because I can learn a lot of things from books. If I read more and more books,I will know more and more things about the world.Books are useful for us. Why do I like apples so much? Because apples are very tasty.It"s very good for us to eat apples often. so,My favourite things are books and apples. 希望能帮到你，祝更上一层楼O（∩_∩）O 4. 英语作文 我最喜欢的东西 给你提供三篇，自己选择一下吧。 1 My name"s Oliver. I"m a 15-year-old student of medium build. I"m outgoing. The thing that I like best is a bike. The bike is very special. It"s a little different from other bikes. It"s a bit bigger. When I was 12 years old my parents gave it to me as a birthday present. How happy I was that day! Now I often ride it to school and on weekends I ride it to the sports club to play sports. When I e home I clean it carefully. I love my bike and I love my parents. 2 Hi. I"m a student of 14. My name"s Sue. I"m of medium height and very popular in my class. I"ve got many things but I like my pen best. The pen is beautiful. It is black. It"s one of the presents that I"ve got. Last year I got a C in English and I was very sad. My English teacher gave the pen to me and encouraged me to study hard. From then on I spent more time studying English. Now I have made great progress in English and I enjoy learning English. I love my pen and I live my English teacher. 3. My favourite things My favourite things are books and apples. Why do I like books so much? Because I can learn a lot of things from books. If I read more and more books,I will know more and more things about the world.Books are useful for us. Why do I like apples so much? Because apples are very tasty.It"s very good for us to eat apples often. so,My favourite things are books and apples. 希望能帮到你，祝更上一层楼O（∩_∩）O 5. 请用英语写一篇作文,是写我最喜欢的一件物品,字数50字, My favorite thing is a snow globe.I get it from my brother on my 7th birthday.Well,this is a lovely snow globe with a very large birthday cake in it.There are many beautiful candles on the birthday cake.There are also some snow men around this cake.I like this snow globe very much, because it is very valuable and meaningful.。 6. 英语作文 我最喜欢的东西 给你提供三篇，自己选择一下吧。 1 My name"s Oliver. I"m a 15-year-old student of medium build. I"m outgoing. The thing that I like best is a bike. The bike is very special. It"s a little different from other bikes. It"s a bit bigger. When I was 12 years old my parents gave it to me as a birthday present. How happy I was that day! Now I often ride it to school and on weekends I ride it to the sports club to play sports. When I e home I clean it carefully. I love my bike and I love my parents. 2 Hi. I"m a student of 14. My name"s Sue. I"m of medium height and very popular in my class. I"ve got many things but I like my pen best. The pen is beautiful. It is black. It"s one of the presents that I"ve got. Last year I got a C in English and I was very sad. My English teacher gave the pen to me and encouraged me to study hard. From then on I spent more time studying English. Now I have made great progress in English and I enjoy learning English. I love my pen and I live my English teacher. 3. My favourite things My favourite things are books and apples. Why do I like books so much? Because I can learn a lot of things from books. If I read more and more books,I will know more and more things about the world.Books are useful for us. Why do I like apples so much? Because apples are very tasty.It"s very good for us to eat apples often. so,My favourite things are books and apples. 希望能帮到你，祝更上一层楼O（∩_∩）O 7. 我喜欢的东西 英语作文 My favorite day of the Spring Festival, because I like the atmosphere of excitement, there is a warm feeling of family reunion. My favorite city is Paris, I love the other side of the monuments and elegant atmosphere. Purple is my favorite color, because it is full of mysterious beauty. If we let me choose a sport I love, I would choose table tennis, because it"s popular. I love KFC, even if it is unhealthy fast food. But I love it fast and easy. Speaking of movies, I love that "The Painted" It makes me understand the meaning of love

规格：400*250*6*8，理论重量49.49kg/m规格：400*250*8*10，理论重量63.11kg/m规格：400*250*6*10，理论重量57.15kg/m规格：400*250*8*12，理论重量70.71kg/m

Myfavouritefoodiscake.becauseitisverydelicious.Althoughcakeisverysweet,itlooksverybeautiful.Onmybirthday,mymotherboughtacakeforme.L"mveryhappy.Therearesomethingsonthecake.Forexample,somefruitandsomechocolate.lalsolikechocolateverymuch.Cakeismyfavourite我最喜欢的食物是蛋糕，因为它很美味。虽然蛋糕很甜，但它看上去很漂亮。在我的生日，我妈妈买给我一个蛋糕。我非常开心。有许多东西在蛋糕上。例如：一些水果和巧克力。我也非常喜欢吃巧克力。蛋糕是我最喜欢的食物

H型钢规格重量表是为了方便查询常用H型钢理论重量而制作的表格，如下常用H型钢理论重量表祝工作顺利！

My favourite food is cake.because it is very delicious.Although cake is very sweet,it looks very beautiful.On my birthday,my mother bought a cake for me.L"m very happy.There are some things on the cake.For example ,some fruit and some chocolate .l also like chocolate very much .Cake is my favourite .翻译我最喜欢的食物是蛋糕，因为它很美味，虽然蛋糕很甜，但它看上去很漂亮，在我的生日，我妈妈买给我一个蛋糕，我非常开心，有许多东西在蛋糕上，例如：一些水果和巧克力，我也非常喜欢吃巧克力，蛋糕是我最喜欢的食物。

【 #小学英语# 导语】英语作文，是指用英语针对某一内容写出一篇文章，是英语考试最常见的一种题目类型，英语作文要求阅读、写作能力比较高，也是考生最容易失分的题型。以下是 整理的《小学生英语作文My Favourite Food》相关资料，希望帮助到您。 1.小学生英语作文My Favourite Food 　　My favourite food is cake.because it is very delicious. 　　Although cake is very sweet,it looks very beautiful.On my birthday,my mother bought a cake for me.I was very happy.There were many things on the birthday cake.For example ,some fruit and chocolate.There were also some candles on it.l like chocolate very much but its not healthy for me to have too much chocolate.Because I will be too fat. 　　Cake is my favourite,I think you will also like it!　 2.小学生英语作文My Favourite Food 　　Fish is my favorite food. I don"t know why I like to eat it. 　　I just feel the smell of fish is very delicious. Maybe is heredity, as my father and grandma also like it. 　　What"s more, I don"t care what kind of fish or what kind of coking style, I like all of them without reasons. 　　Every time my mother cook fish, I will eat much more than usual. 　　So my mother always says that she gives birth to a cat. Every time she says that all of us laugh. 3.小学生英语作文My Favourite Food 　　There are many foods in the food realm.Potato is my favourite food. 　　Most of us like potatoes,because they are delicious.Im no exception.Scientists tell us that they are good for our health,thats why I like patatoes. 　　Potatoes are the well-known vegetables in the world.They are usually cooked with meat.Oh!That sounds good. 　　Hurry!Hurry!Lets taste the potatoes.Eat more potatoes,and you will become stronger. 4.小学生英语作文My Favourite Food 　　There are many many foods we can eat such as apple banana pear carrot onion orange potato and many others. 　　My father likes to eat very thing expect it is not be able to eat. My mother likes to eat vegetables and fruits she usually eat some meat. I like to eat meat and fruits too but I do not like to eat vegetables and apple is favorite food. 　　It is very tasty and has many things which our body need; they also can clean our teeth. Some of them are red some of them are green. 　　I like to eat the red ones because they look nicer than the green ones. Apples are very useful someone say apple can make people more beautiful and strong. 　　I do not think apples can make us more beautiful and strong but I believe someone who always eats apples will be more health than someone who does not like to eat apples will not be very strong! 5.小学生英语作文My Favourite Food 　　Do you know what this is? Guess! Its colour is yellow. It"s long and thin. It looks like a small boat and crescent. Oh, it is a banana. Do you know what that is? Guess again! Its colour is orange. It"s round. It looks like a small ball and a small lantern. Oh, it is an orange. I like then a lot. I like ice-creams. I like to chew gum. Chocolates and candies are yummy. I like them very much. How about you? What"s your favourite food? 6.小学生英语作文My Favourite Food 　　Do you have your favourite food My favourite food is chicken wings.I like spicy chicken wings best.Because I think they"re nice.Every week I often eat six chicken wings.They"re good for your health.They can make you strong.But you can"t eat a lot.They are bad for your stomach.I love chicken wings.I can"t leave them.

My favourite bookI"ve read a book called “The Lion King”. I already watch it in the cartoon when I was little, but now I reverse the story by reading the book. It was a book about the King of the private land called Mufasa, he have a brother called Scar, a jealousy person. He wants to be the future king, to be the leader of all animals. But his dream is broken by the newborn baby of Mufasa – Simba~! A really cute little lion, because he will become the future king after Mufasa"s death, therefore there"s no chance for Scar. So he"s trying to kill both of them. So he puts Simba into danger and killed Mufasa. He told Simba it was all Simba"s false because Mufasa is dead because he was trying to safe Simba. So Simba run away by fear. He meets two friends in a beautiful land. They taught Simba everything will be fine as the time passing. But once Simba meet his best friend Sara, and he follows her back to his kingdom and found out the truth about his father"s death, therefore he killed Scar, and he live happily with other animals ever after~! This is a good story for everyone, it"s easy for children to understand the main story, but it"s good for someone even older because it tell us that it"s important to facing the past, even know the past may hurts but you have to face it and learn things from it, don"t let it happens next time to make a better future~!! I enjoy reading different kinds of books, but "Harry Porter" is my favorite one. The story is very long but I am interested in it. Harry was such a brave and clever boy that he dared to fight against powerful enemies. His Z-shaped scar and magic stick brought me into a magical world. In fact, the fiction story is so meaningful that I can learn a lot from it. I think it"s the best book I"ve ever read.