She didnt watch TY last night ,but she played the violin
题目
She didnt watch TY last night ,but she played the violin
She didnt watch TY last night ,but she played the violin
=she played the violin ______ _____ waching TV last night.
答案
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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