英语,根据要求写对话
题目
英语,根据要求写对话
Situation1
You are blind.You want to visit a friend who lives on the other side of town.You have to go there by bus and you must change buses once.
答案
I：我 S：某人
I:Excuse me!Can you tell me where is the nearest bus station?
S：Yeah!There is one on the third cross.then you turn on left
I:OK,thanks very much!
举一反三
已知函数f（x）=x，g（x）=alnx，a∈R．若曲线y=f（x）与曲线y=g（x）相交，且在交点处有相同的切线，求a的值和该切线方程．
我想写一篇关于奥巴马的演讲的文章,写哪一篇好呢?为什么好
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