I have never learned as much math in my life as I did last year.It was because of Ms.Vacirca 51 I
题目
I have never learned as much math in my life as I did last year.It was because of Ms.Vacirca 51 I
就是这篇完形的翻译，
答案
生命中,我还未学会做像去年那么多的数学.这些都是因为 Vacirca 小姐 .
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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