两个人分别以一倍光速相向而行,那么一人看见对方的速度是否为99.999991%光速

楠楠把三位数个位上的7错写成了4,则三位数为：XX7,楠楠写为XX4
彬彬把三位数十位上的2错写成了8,则三位数为：X2X,彬彬写为X8X
可知三位数原为X27,楠楠写为X24,彬彬写为X87.根据他们的结果,因为是三位数和两位数相乘,则三位数的百位小于等于4.否则另一个乘数只能为个位数.
你就可以用（1,2,3,4）代入楠楠的算,即用4860分别除以124,224,324,424 . 可知只有324正确,两位数为15,而百位为3,故原来的是327乘15等于4905.
你算的是正确的.

At KFC, two men at the next table were busy chatting, because they were chatting in their top voice and the topic was about software programming.
One of the two people looks around 50 years old and he looks like

They have two different opinions when they were talking, the elder one was

有福不知享 有祸不懂避

应该是答案2
小学毕业很多年了
也不晓得能不能对
体温计下端有梭口
用完后应该甩
没往下甩的话测比原有温度低的话
测不出来
而温度高的话应该行

30-（10+4）=16
16/2=8
4+8=12
10+8=18
所以两人是12、18岁

小A每分钟跑32每0米？
2、设高一，高二，高三人数为x，y，z
x/y=4/3,
y/z=2/3
得x:y:z=8:6:9
x+y-z=300
300/(8+6-9)=60
x=8*60=480
y=6*60=360
z=9*60=540

每个人的思维方式不同

设：小明给小芳X张时两个人集邮的张数一样多.
300-X=260+X
2X=300-260
X=40/2
X=20

一般是下面的费劲,因为重心在下面,你如果比他抬的高就是他费劲!

上面那个人省力,因为一般来说,后面的人除了要抬高物体外,还主要负责阻止物体下滑并向斜上推的工作.如果是用扁担的话,绳子还容易往下滑,从而下面的人要承担更多的抬(举)力.

单一的回答能与不能都是不对的.
因为两个人可以是面对面的站着,也可以是背对背的站着.

设康康有X本书,辉辉有X/3
有 X+X/3=164
4X/3=164
X=164*3/4=123 164-123=41
答：康康有123本书,辉辉有41本书.

解题思路：设一家三口人中每个人的年龄分别为x、y、z，由于每两个人的平均年龄加上余下一人的年龄分别得到47，61，60，由此可以列出一个三元一次方程组，解方程组即可解决问题．

设一家三口人中每个人的年龄分别为x、y、z，



x+y
2+z=47

y+z
2+x=61

x+z
2+y=60
解得：

x=38
y=36
z=10
这三个人中最大年龄与最小年龄的差是：38-10=28（岁）．
故选：A．

点评：
本题考点： 年龄问题．

考点点评： 此题比较贴近实际生活，首先正确理解题意，然后根据题意列出方程组，解方程组即可解决问题．

这下面很多啊
英语对话：
Planning an Evening Out (2) 计划晚间的外出活动
It's OK to make plans with friends at the last minute.It's more polite,however,to make them ahead of time.
临时作出计划约请朋友是可以的,但是提前安排好计划则更为礼貌.
1.A:How about going to hear a country-and-western singer tonight?
B:I'd enjoyed that.
A:I' pick you up around 8:00.
B:OK.I'll see you then.
2.A:Do you feel like going to see Paul and Claire tonight?
B:I'd like that very much.
A:How does 7:30 sound?
B:Fine.See you late.
3.A:Would you like to go to a party tonight?
B:That sounds like a good idea?
A:Would 7:00 be OK?
B:That's fine.I'm looking forward to it.
4.A:Why don't you have dinner with me tonight?
B:I'd love to.
A:Let's say about 6:00?
B:That's OK with me.
2).Buying Theater Tickets 买戏票
Going to the theater is very popuar and shows are often sold out far in advance.It is a good idea to buy your tickets in advance if you want to see a particular show.It is not necessary to tip the person who shows you to your seat in a theater.
人们很喜欢看戏,而且戏票常常是很早就预售一空.如果你想看某一场演出,最好是提前买票.没有必要给剧院领座的人付小费.
1.A:I'd like to reserve two seats for tomorrow night.
B:Would you like orchestra seats?
A:Isn't there anything less expensive?
B:Not unless you want the matinee.
2.A:Can I still get tickets for tonight's performance?
B:The front balcony is still availavle.
A:Aren't there any other seats?
B:No,I'm afraid that's it.
3.A:Are there any seats left for Saturday night?
B:I still have a fiw seats in the mezzanine.
A:I suppose there's nothing cheaper,is there?
B:No.Nothing.I'm sorry.
4.A:Is there anything available for tonight?
B:There are some seats in the rear mezzanine.
A:Isn't there anything else available?
B:No,the show is almost sold out.
Sports 运动
Both team sports and individual sports are extremely popular in the United States.Don't be afraid to try a sport you haven't played before.People are usually willing to help beginners.
在美国,无论是集体的或个人的运动项目,人们都极其喜爱.对于你以前没有玩过的运动,你不妨试一试.人们通常都乐于帮助初学者.
1.A:Would you like to go running?
B:I'd enjoy that.Where would you like to go?
A:We could go to the park.There shouldn't be many people there now.
B:Good.Just let me change.
2.A:How about going for a bike ride?
B:Sure.Where?
A:Let's call Harry and ask him.He always knows the best places to go.
B:That's a good idea.I'll get ready.
3.A:Let's go swimming.
B:OK.Where should we go?
A:Why don't we go down to the lake?It's not too far from here.
B:Fine.I'll be ready in a minute.
4.A:How about going hiking with us?
B:Sounds good to me.Where do you want to go?
A:Let's go up to the mountains.It should be beautiful there.
B:OK.Just give me a few minutes to get ready.
英语对话稿,这里面也有的：

5N
两个人拉和一端固定在墙上是一样的 橡皮筋一端受力5N另一端肯定也是5N 不论是固定在墙上还是别人手里拉着 .

先从5人中找出两人,与甲乙两人组合,
之后再与其他三人排列.
二者之积就是答案.

设 小明有零花钱 x 元,则小红有零花钱 x-10 元.
x-2x/5=x-10+2x/5
解得 x=12.5
小明 12.5元
小红 12.5-10=2.5（元）

A job interview
这只有个短的,参考参考,：）
A:Hey,could you help me to get ready for my job interview?
B:The most important thing to do is to make sure you know the company and what services or products it provides.Do you know all about them?
A:Yes,I pretty much understand the company.
B:Well,after you've done your research,you have to decide whether the company is casual or formal.Have you
A:Yes,I've been observing them.
B:When you are choosing what to wear,keep all of that in mind.Have you chosen what to wear?
A:I already have something to wear.
B:I would always be ready to go shopping with you!Should we talk about other basics?
A:OK,I am ready to think of other things.
B:You need to make sure you arrive on time,smile,be pleasant and friendly,look the person in the eye and answer all questions to the best of your ability.You'll do great!

方程吧
设师傅完成了x个,则徒弟完成x/2个,依题意
30分钟=1/2小时
x/2÷8-x÷20=1/2
x/16-x/20=1/2
两边同时乘以80,
5x-4x=40
解得,x=40
所以,师父完成40个.

从第一个小朋友到最后一个小朋友之间
=2×（10-1）
=2×9
=18米

Guest 顾客（女） Waiteress 女服务员
Guest:Hi, waiteress. Could you help me? 嗨,服务员（女）,能帮我一下吗?
Waiteress:Yes,ma'am,what can i help you?您好,太太,有什么需要帮忙的?
Guest:Um,i want to buy some pickle cucumber ,which shelf does it place?嗯,我想买点酱黄瓜,但是我不知道它在那一排货架?
Waiteress:Don't worry,ma'am.Go along this aisle ,you'll see a big bulletin ,writing Sauce Food,you'll find your goods there.夫人,别急.顺着这通道走,你将会看到一个大的指示牌,上面写着酱料视频,您可以在那找到你想要的（酱黄瓜）.
Guest:Oh,thank you !By the way ,can you tell me how much each kilo of the pickle cucumber?
非常感谢!对了,能顺便告诉我每一千克酱黄瓜多少钱吗?
Waiteress:Last updated ,i remember its cost ￥30 each kilo,that's all i knew!嗯,最后一次标价,我记得要每公斤要30块吧,我只知道这些了!
Guest:Okay ,thanks again!好的,再次感谢!
Waiteress:You'are welcome!不客气!

这批零件t个
师傅每小时t/20个,徒弟每小时t/25
师徒两人合作时间t/(t/20+t/25）=100/9
师傅比徒弟多做400个则（t/20-t/25）*100/9=400
则t=3600

至少两个人的概率 1-(365!/315!)(50在365中的全排列A50 365)/(365^50)=0.97

这个问题有两种答案
1是160米 3人一人搬一段
2是480米 3人一起搬

如果觉得没办法用一句话来说清楚,建议用几句简单的句子来描述：
The man is Amy's elder brother and he is also Tom's elder brother.
或：The man is Amy's and also Tom's elder brother.

弹簧受力还是10公斤,即F=10kg*9.8N/kg=98N
因为力是物体对物体的作用.

100/8=12...4
你先摸4,
他1你7,他2你6,他3你6,他4你4,...
能保证最后的球一定是你的

设甲速为x千米/小时,乙速为y千米/小时,依据题意有：4x=3y…………（1）
X/4+7X/4=7Y/4-6………………（2）
由（1）得,x=3y/4…………（3）
将（3）代入（2）,并移项,得
7y/4-6y/4=6,解方程,得y=24,
将y=24代入（1）,得x=18
两地的距离S=2x+7y/4=2*18+7*24/4=78(千米)

这些是概率?算起来很麻烦而且要用图这实在是……

相对而视
对视

甲的速度为X,乙为Y
6（x-y）=2y
8（x-y）=16
x=8
y=6
答：甲的速度为8m/s
乙为6m/s

习惯一个人的滋味:Used to being alone
淡忘两个人的感觉:Forget the feeling of together
请给分哦谢谢

一共要赛6场
若：甲只胜了一场,乙丙也同样各胜一场,则丁胜了3场
甲胜了2场,乙丙也同样各胜了2场,则丁胜了0场

没办法,要不叫醒他俩你先睡,要不等实在困了就睡着了

我们都有中等身高
Both of us have a medium height

应该是8比9

公平的 总共4种结果 2黑 1黑1白 1白1黑 2白 输赢各50%

因为小明考的分数是小红的2倍,所以150分所对应的份数是三,150除以3等于50,50乘以2等于100. 所以小明100分,小红50 分

可以是关于最近的新闻、班级里发生的小事等的介绍,可以配合图片烘托效果!

A：Do you know the most interesting festival in America?
B:Um...Let me see...I don't know.Could you tell me?
A:I think it is Christmas Day.
B:Why do you think so?
A:Because I can see Christmas Father on that day.And I can get a gift nfrom him if I hang a stocking on my bed.Isn't it interesting?
B:Oh,yes ,yes.It is interesting.But you know the gift is given by their parents .
A:Yes,I know.But their parents are so kind.They do it on that day every year.
B:Yes,maybe they think it is their jobs and maybe they like doing it.
A:Maybe they think so.

240-40=200(元） 这个是写他们俩相差数
200÷（3-1）=100（元） 这是小芳的零花钱
100×3=300（元） 这个是明明的零花钱

冲量=Ft 由于经过相同的时间和用相同的恒力拉绳子 得出：冲量相等 由于都是由静止到运动：Ft=mv V和v分别为甲和乙速度 M为船 和 m为人的质量 甲冲量 ：(M+m)V 乙冲量：（2M+m )v 甲乙冲量相等所以有：(M+m)V =（2M+m )v 甲的速度V比乙的速度v为:2M+m:M+m 甲做功的是：1/2(M+m)VV 乙做功的是：1/2(2M+m)vv 用甲做功除以乙做功要是大与1就是甲做的功大,要是小于1乙做的功大 1/2(M+m)VV / 1/2(2M+m)vv =1/2(M+m）（2M+m）2M+m） / 1/2(2M+m)（M+m）（M+m）=2M+m/M+m 2M+m/M+m肯定大于1 那就是甲做的功大

3

设黄球的个数为x个,则红球的个数为2/3x个.
x-3/2/3x+2=3/4
解得x=9

甲效率=1÷12=1/12
乙效率=1÷15=1/15
甲独做4天完成的工作量=4×1/12=1/3
甲乙再一起做,完成的工作量=1-1/3=2/3
还要的时间=2/3÷(1/12+1/15)
=2/3÷3/20
=2/3×20/3
=40/9 天
=4又4/9 天

（10÷X）-[10÷（3+X）]=40÷60

第一个人抽取黄球概率40/100,第二个人呢抽到黄球就变成了39/99（黄球少了一个,总球数少了一个）.即2/5*13/33=26/165

最常见的说法是
protect our destiny

排比