谁会解这道题啊 1.有3个人去投宿, 一晚30元. 三个人每人掏了10元凑够30元交给了老板.

理由:(1)这三个人借宿，结果每人10元，共10×3=30元。 (2)每人退回1元钱,即每人花了9元钱,三人一共花了27元钱.这27元里老板留下25元,服务员私自留下2元. (3)再加上退回的3元钱,结果正好是30元. 结论:这道题迷惑人主要是它把那2元钱从27元钱当中分离了出来,原题的算法错误的认为小二私自留下的2元不包含在27元当中,所以也就有了少1元钱的错误结果；而实际上私自留下的2元钱就包含在这27元当中,再加上退回的3元钱,结果正好是30元

一块钱在老板那里。

老板叫服务生退回五块给顾客,所以老板实际上得了二十五.服务生私吞了两块,再加上退回的每人一块,正好是25+<2+3>=30

因为根本就没这一元，最后的结果是三人每人花掉九元，共花27元，服务员贪赃2元，是减掉2元，然后27-2=25元，就是老板手上的25元;当老板返回钱后就跟30元没关系了;消费的钱和贪污的钱不能想加的

3*9=27元加服务生藏起的两元等于29元这里有问题，所以会出现额外的一元，因为服务生藏去的两元是在27元里的，应该加上拿回的3元

算法的问题

老板实际收钱25加服务员2块在加还给他们3块刚刚30块，这是个骗人的

老板加上服务员的是25+2=27 三位旅客一共付出3*9=27相等的。。上述题目后面纯粹就是误导。。

这些太简单了

那一元在25里了

这是为什么呢?

你算错了，每个人总共花了27元，而不是29元，每人拿出10元共30元后来退回3元等于27元。房钱25元，服务生藏了2元。

25/3=8.33333333333333+1*3+2~30

其实这个问题有个地方很误导人，就是 “这样,一开始每人掏了10元,现在又退回1元,也就是10-1=9,每人只花了9元钱”要是题目没这么分析的话，看题目的人都不会这么去想的。其实很简单的，应该这么分析才对： 老板收走的 25+ 服务生手里的 2 + 三个人手里的1元（加起来3元）=30元那一块钱肯本不存在！

这27元里是他们优惠后付的25元和服务生藏的2元,再加服务生还的3元,刚好30

基础理论？》

不对 不是这么算的 老板收了25 服务员拿了2 三个人一人一块就是3 25+2+3=30

丢了

一共30元三人收完3元服务生偷2元，投宿25元。不是很清楚吗。

退了一元给了谁！

煞笔你是闲的蛋疼是不是？

不对 不是这么算的 老板收了25 服务员拿了2 三个人一人一块就是3 25+2+3=30

表示被这个问题坑过

蹭分

3成9等27加3

伪逻辑的问题就别问了，无聊。

三个人每人掏了10元凑够30元交给了老板.后来老板说今天优惠只要25元就够了,拿出5元命令服务生退还给他们,服务生偷偷藏起了2元,然后,把剩下的3元钱分给了那三个人,每人分到1元.这样,一开始每人掏了10元,现在又退回1元,也就是10-1=9,每人只花了9元钱3个人每人9元,3 X 9 = 27 元 + 服务生藏起的2元=29元，还有一元钱去了那里？？？ 答案:每人所花费的9元钱已经包括了服务生藏起来的2元（即优惠价25元+服务生私藏2元=27元=3*9元）因此，在计算这30元的组成时不能算上服务生私藏的那2元钱，而应该加上退还给每人的1元钱。即：3*9+3*1=30元正好！还可以换个角度想..那三个人一共出了30元，花了25元，服务生藏起来了2元，所以每人花了九元，加上分得的1元，刚好是30元。因此这一元钱就找到了。 小结：这道题迷惑人主要是它把那2元钱从27元钱当中分离了出来,原题的算法错误的认为服务员私自留下的2元不包含在27元当中,所以也就有了少1元钱的错误结果；而实际上私自留下的2元钱就包含在这27元当中,再加上退回的3元钱,结果正好是30元。

您好，您这个问题问的不全哦。是不是这个嘞： 有3个人去投宿, 一晚30元. 三个人每人掏了10元凑够30元交给了老板. 后来老板说今天优惠只要25元就够了, 拿出5元命令服务生退还给他们, 服务生偷偷藏起了2元, 然后, 把剩下的3元钱分给了那三个人, 每人分到1元. 这样, 一开始每人掏了10元, 现在又退回1元, 也就是10-1=9, 每人只花了9元钱, 3个人每人9元, 3 X 9 = 27元 + 服务生藏起的2元=29元， 还有一元钱去了哪里？？？ 这类的问题都是偷换概念的，只要划分清了就很容易啦。服务生藏起的两元和他们付出的钱不是一类的是付出钱中的一部分，是不能相加的，也就是这题里的算法是错的。原题的算法错误的认为服务员私自留下的2元不包含在27元当中,所以也就有了少1元钱的错误结果；而实际上私自留下的2元钱就包含在这27元当中,再加上退回的3元钱,结果正好是30元。

什么题目啊

其实其中已经包含了那一元，

3*9=27+3=30 25+2+3=30 3*9=27-2=25 老板+服务生=旅客不是一条道，不能相加。

在他们三个人里面。

每人所花费的9元钱已经包括了服务生藏起来的2元（即优惠价25元+服务生私藏2元=27元=3*9元）因此，在计算这30元的组成时不能算上服务生私藏的那2元钱，而应该加上退还给每人的1元钱。即：3*9+3*1=30元正好！还可以换个角度想..那三个人一共出了30元，花了25元，服务生藏起来了2元，所以每人花了九元，加上分得的1元，刚好是30元。因此这一元钱就找到了。

其实这是一个误导题. 1.先是三人拿出的是每人9元,没错,也就是27元.备注:如果把小二退的三元拿出来他们的钱就对了=27+3=30 2.接下来应该算的是店主也只得了25.加上小二的5元(没退之前).25+5=30也对了 3.为什么想的时候总是去把小二的那2元加上自己所出的27元钱呢?27元里已经包含了小二的两元,这里就被误导了. 4.最简单的一样,就是我们说的27元是自己认为的.这是虚的.而只拿出了25元是实的.

问题就出在服务生藏起的2元，这2元本来就是三人花的钱，算在3*9里面，而不能单独再算一次。三人花的钱3*9=27（25元在老板哪，服务员藏2元），还有3元没算（每人退回了1元）。所以真正的30元这样算，三人花的钱3*9，加上退的钱3*1，总数30。题目的算法是错误的。如果只有加和减或者只有乘和除，从左往右计算，例如：2+1-1=2，先算2+1的得数，2+1的得数再减1。扩展资料：如果一级运算和二级运算，同时有，先算二级运算，如果一级，二级，三级运算（即乘方、开方和对数运算）同时有，先算三级运算再算其他两级。几个加数相加，可以任意交换加数的位置；或者先把几个加数相加再和其他的加数相加，它们的和不变。

老板

实际房费25+小二退还的3块+小二黑掉的2块=30 站在投宿的三人立场算是不对的。

其实答案很简单，到这里来看看，一下子你就会恍然大悟了！http://user.qzone.qq.com/807222972?ADUIN=807222972

argument 是争吵的名词.argue 是动词.

这题应该是根据括号内的词填写正确的形式。There was an_____｛argue｝ happened between Tom and Jack last nightargue是动词，争论。这里有冠词an显然应该填名词形式，argue的名词形式是arguement句意：昨晚汤姆和杰克发生了争吵。

你是历城二中？34级滴！

简单的说，argue是争辩，辩解controversy是辩论，论战，书面的dispute是争吵debate是讨论，争论altercate是争吵，口角

为了方便平时导航，我们可以把公司地址添加到高德地图上，下面我们就来看看怎么样在高德地图上添加公司地址的方法吧。1、首先在手机桌面上左右的滑动屏幕，找到安装好的“高德地图”图标。2、接着在打开的高德地图的主界面，点击左上角的“个人中心”按钮。3、然后在打开的高德地图个人中心页面中点击右上角的“设置”按钮。4、这时就会弹出高德地图的设置页面，在页面中点击“通勤设置”菜单项。5、接着在打开的通勤设置页面中，找到公司的设置项，点击后面的编辑按钮。6、接着就会打开高德地图，我们在地图上选择公司的地址，然后点击下面的“确认选点”按钮。7、这时就会弹了添加成功的提示信息，这样就把公司地址添加到高德地图上了。

我只听说过argument，名词性，争吵的意思；如果你在辞典里查到，那么应该是有的，只是不常用，可能是生僻词；

可以在dituzhe平台上上传表格进行批量导入标记，只需要三步即可打开dituzhe按格式要求上传表格创建地图，添加数据

[controversy;argue; contend;skirmish

应接不暇→瑕瑜互见→见鞍思马→马入华山→山高水长→长娇美人→人迹罕至→至诚如神→神工鬼力

高中英语必修4知识点讲解必修4 Unit1 Women of achievement知识点讲解重点词汇1. achieve 【课文原句】She has achieved everything she wanted to do… (P3)【名师点拨】achieve v. 意为“完成；达到”，指经过长期努力而达到某目标、地位或标准等。其名词形式为achievement，意为“成就；功绩”，a sense of achievement可指“成就感”。如：He had finally achieved success.Even a small success gives you a sense of achievement.2. condition【课文原句】She helped improve prison conditions and gave prisoners work and education. (P1)【名师点拨】condition 意为“环境；境况；条件”时，是可数名词，常用复数形式conditions；意为“状态；状况”时，是不可数名词，be in good condition表示“处于良好的状态”，be out of condition表示“健康状况不佳”。如： We should pay more attention to the poor living under the bad conditions. The astronauts soon got used to the condition of weightlessness. My car is old but in good condition. He is overweight and out of condition.【知识拓展】condition意为“条件”时，常用短语on condition that，表示“如果；在……条件下”；在美国英语中，也经常用under the condition that。如：I will come on condition that Peter is invited.They agreed under the condition that the matter be dealt with quickly.3. devote【课文原句】She devoted all her life to medical work for Chinese women and children. (P1)【名师点拨】devote vt. 意为“投入于；献身”，其宾语后常与介词to搭配，to后接名词、代词或动名词。devote … to … 意为“献身；致力于”，指把自己、时间、精力等奉献给某种工作或事业。如：He has devoted his whole life to benefiting mankind.The girl, to whom he was devoted, died in a traffic accident by chance. After he has retired, he will devote himself to gardening.4. behave【课文原句】Jane has studied these animals for many years and helped people understand how much they behave like humans. (P2)【名师点拨】behave vi & vt. 意为“举动；举止；行为表现”，如behave well / badly等。其名词形式为behaviour，指“行为；态度；举止”。如：The parents encouraged the children to behave well in front of the guests.My camera has been behaving well since it was repaired.Everyone praises the children"s good behaviour.5. worthwhile【课文原句】But the evening makes it all worthwhile. (P2)【名师点拨】worthwhile adj.意为“值得做的；值得出力的”，可作表语或定语。be worthwhile to do / doing sth表示“值得做……”，在动词-ing形式的结构中，worthwhile有时可以用来替代worth，特别是在表示“值得花时间”这一概念时。如：I think teaching school is always a worthwhile job.The book referred to by the professor is worthwhile / worth reading.6. observe【课文原句】Jane spent many years observing and recording their daily activities. (P2)【名师点拨】observe vt. 意为“观察；观测；遵守”，可用observe sb do sth，observe + that从句。其名词形式为observation。如：I observed the man who murdered the boy enter the shop.He observed that we should probably have rain.Most information was collected by direct observation of the animals" behaviour.7. argue【课文原句】She has argued for them to be left in the wild and not used for entertainment or advertisements. (P2)【名师点拨】argue作动词时，意为“争论；争吵；争辩”。argue for意为“为……辩护”；argue with sb about / over sth指“就某事和某人争论”；argue against意为“据理反对；争辩……”。如：It is no use arguing for the plan because it has been rejected.We are always arguing with each other about money. Father argued fiercely against any increase in expenditure for the children"s annual party.【知识拓展】argue的名词形式为argument，意为“争论；争端；论证”，常构成短语settle an argument指“解决争端”。9. care for【课文原句】It was a small book explaining how to cut the death rate from having and caring for babies by following some rules for keeping babies clean and healthy. (P6)【名师点拨】care for可以表示look after的意思，意为“照顾；照料”，且较正式；也可表示“喜欢”的意思。如：His son cared for him when he was ill.In fact, I don"t really care for basketball.另外，在上面的句子中，explain意为“解释，说明”，后可接名词、代词、从句或wh + to do作宾语，可用explain sth to sb或explain to sb sth。如：Will you explain to us how we can finish the work as soon as possible?【知识拓展】care about意为“介意；在乎”，表示是否认为某事是重要的，某事是否引起了某人的兴趣或使其忧虑。最常用于疑问句或否定句中。about用在宾语前面，但是在连词前面一般省掉。 I don"t care about your opinion. I don"t care whether it rains — I"m happy.10. intend【课文原句】I looked carefully at the text and realised that it was intended for women who lived in the countryside. (P6)【名师点拨】intend v. 意为“打算；计划；想要”。intend to do sth意为“想干某事”；intend后也可以接动词-ing形式或that从句。intend for表示“原打算给某人；准备让……干……”。如：I intended to come to your house last night but it rained. I intend coming / to come back soon. He hadn"t really intended that they should be there. This gift is intended for you.热点语法主谓一致用法难点小结：一、集合名词作主语时的主谓一致。1. 集合名词有family, team, group, party, class, public, club, crew, crowd, enemy, audience, company, committee, government, population等，当被看作一个整体时，表示单数意义，谓语动词用单数形式；如果这些集合名词指其中的每个成员，表示复数意义，谓语动词则用复数形式。即谓语动词的单复数要与主语的含义相一致。如：My class is a big one, including thirty boys and thirty girls.My class are working hard for the coming exam.2. 有些集合名词作主语时，谓语只能用复数形式，如：people, the police, the military, mankind, cattle等。如：The police are searching for the lost child. 二、不定代词作主语时的主谓一致。不定代词anyone, anybody, anything, everyone, everybody, everything, someone, somebody, no one, nobody, nothing, each, the other等作主语时，谓语动词用单数。如： Everything goes well with me. Each of the students in our class has an English-Chinese dictionary.三、“名词＋名词”作主语时的主谓一致。 当表示同一人物或观点时，谓语动词用单数。如：A novelist and playwright is coming to our school. 这里表示“一位小说家兼剧作家”，是同一个人，所以谓语动词用单数。 如果是A novelist and a playwright作主语，这时表示“一位小说家和一位剧作家”，是两个人，所以谓语动词用复数，该句应改为：A novelist and a playwright are coming to our school.四、The ＋ adj.作主语时的主谓一致。 当The ＋ adj.表示抽象的含义时，谓语动词用单数。如：The beautiful is the true.当The ＋ adj.表示该类全体的含义时，谓语动词用复数。如：The rich should help the poor.必修4 Unit 2 Working the land 知识点讲解Unit2 Working the landPhrases and Idioms1. be satisfied (with): pleased because you have got what you want 1) Jane isn"t quite satisfied with the way the barber cut her hair.2) If you are not completely satisfied, you can get your money back.3) I am not really satisfied with the job you did.2. refer to : a) mention or speak about someone or something b) to look at a hook map, piece of paper, etc, for information1) We agreed never to refer to the matter again.2) Although she didn"t mention any names, everyone knew who she was referring to.3) He gave the speech without referring to his notes even once.3. would rather: used to say what someone prefers 1) It seems you would rather play than work.2)She would rather die than lose the children.3) I would rather starve than be dependent on anyone again.4. thanks to sb/ sth : because of sb./ sth. 1) I was late thanks to the heavy traffic.2) It was thanks to his advice that I succeeded.3) We"ve collected $50,000 for the poor, thanks to the generosity of the public.5. rid of sb/sth: become free of 1) Will science- finally rid us of this disease?2) Do you think it possible to rid the world of nuclear weapons?3) By working hard day and night, she is trying to rid herself of loneliness and sadness.6. lead a ...life: live in the way what you life is like 1) Before liberation, my grandpa led a dog"s life.2) If the operation succeeds, the patient will be able to lead a normal life.3) Mrs. Black is retired and leads a quiet and peaceful life in a mountain village.7. care about: love; be interested in; be concerned with 1) Just listening to somebody shows you care about them.2) Your parents are only doing this because they care about you.3) The only thing this rich- and greedy man seems to care about is money.8. insist on sth/doing sth: to demand that something must be done or that you must have a particular thing 1) The school insists on good behaviour from its students.2) John insisted on doing all the work himself, though he was in poor health.3) The old man insisted on helping me find a taxi even though I told him I didn"t need any help.必修4 Unit3 A taste of humor 知识点讲解Unit3重点汇集1. content【课文原句】Perhaps it makes us feel more content with our life because we feel there is someone else worse off than ourselves. (P17)【名师点拨】content adj.意为“满足的；满意的”，be content to do意为“乐意去做某事”；be content with sb / sth意为“对某人或某事感到满意”，相当于be pleased with或be satisfied with。如：I"m content to help you to set up a website on the Internet.Those who are not content with the progress they have made will have greater success.注：worse off是badly off的比较级，意思是“境况比……更差”；better off意为“境况比……好”。如：To my surprise, I found his living conditions were much worse off than mine.With the development of economy, more and more people are better off.【知识拓展】content还可作动词，意为“使满足”；作名词时，表示“满足；心满意足”，也可表示“（书、报纸等的）内容；目录；含量”。如：My explanation seemed to content him.Now she began to live in peace and content.We"ve discussed the unusual form of the book — now, what about the content?

地图上的位置查询方法：操作环境：联想拯救者Y9000P、WIN10、百度浏览器202122.1.1。1、在电脑的百度上输入百度地图，找到其官方网站以后点击进入。2、进入到百度地图以后点击底部的开放平台。3、页面跳转以后进入到百度地图开放平台，点击底部的坐标拾取器进入。4、在出现的页面中输入需要定位的位置或者鼠标点击需要的定位的位置。5、此时即可看到被定位位置的具体经纬度坐标了。

可以寻求一下百度地图服务商的帮助