对划线部分提问:1 My mother is nurse (in the hospital).2 I am (doing my homework) now.
题目
对划线部分提问:1 My mother is nurse (in the hospital).2 I am (doing my homework) now.
答案
Where does your mother work as a nurse?
What are you doing now?
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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