Maria is sitting on the beach and drinking iced tea对sitting on the beach and drinking iced tea提问
题目
Maria is sitting on the beach and drinking iced tea对sitting on the beach and drinking iced tea提问
答案
What is Maria doing?
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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