He with his parents is going to (do hiking) this weekend.对括号里的单词提问
题目
He with his parents is going to (do hiking) this weekend.对括号里的单词提问
答案
What is he with his parents going to do this weekend?
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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