The children are playing in the park
题目
The children are playing in the park
改正错句
对不起还有：
1.What do you come here?By car.
2.I am old than my brother.
3.This is Danny hat.
4.have a good trip!
5.Would you like a milk?
答案
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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