用英语描述你家的路线
题目
用英语描述你家的路线
答案
My home isn't far from our school.When you go out of the school,walk along the road.Turn right at the traffic light.Walk on.Then you will see a post office.My home is behind it.You can't miss it.
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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