how did i fall in love with you歌名?
题目
how did i fall in love with you歌名?
how did i fall in love with you?
what can i do to make you smile ?
i'm always here if you're thinking of
答案
泪的物语 有里知花
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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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