smj三年级英语听力

途中汽车转向2次，将时间分为abc3段
设汽车在离校x米处折返,可得一下关系
40a=x
(40+8)b=x-8a
8(a+b)+40c=100
x+8(b+c)=100
要同时到达显然两批人乘车的时间应该相等，即a=c
可以解得a=c=15/8,b=5/4,x=75
共用时t=a+b+c=5小时
所以在11点出发

人人人人人人人人人人人人人人人人人人人人人人人人人人人人人人人人人人人人人人人

求人不如求己，加油！
学习是自己的事，你可以要别人帮你做作业，但不要期待这样做会提高自己的学业成绩。望你三思！

呃 我也不会啊、、、这在找啊~~~~~~

SMJ（十七）什么意思啊，我英语很好。可以告诉你的

一：biggest better more quicker busiest strict well-behaved gerden wall golden bowl destroies die crying actor return age moved january december married patriotic space reached husband clock finishes orbited last build hero by him quickiy once usual beside about to until late 二：gets didn't get was met are bought don't like did can't doesn't like watched eating cooked was went got cleaned did ate talked sang danced had left to buy watching to do swim is taking 手断了，赏点分吧！！！没功劳，有苦劳！！！！1

cindy....
个人喜欢loreta

自己想,不要就会吃现成饭,小小年纪就不学好,长大了还得了!自己动脑筋想出来的答案,不是更有意义吗?写上去的正确答案,你自己不知道解题的过程,还不是没学会吗?加油!我相信你!

我不知道你为什么会向我求助，可是我大三了啊，怎么知道你的“2010学年第一学期七年级英语(外研版新标准)同步检测——SMJ(十五)”……

这个游戏好像在3839小游戏上面玩过