That is my picture（改为复数句） Is she your daughter?(作否定回答)
题目
That is my picture（改为复数句） Is she your daughter?(作否定回答)
答案
That is my picture（改为复数句）：Those are my pictures.
Is she your daughter?(作否定回答)：No,she is not.
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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