Why I get married?because I fall in love with her!I want to take good care of her all my life!s对不
题目
Why I get married?because I fall in love with her!I want to take good care of her all my life!s对不
答案
Why have I got married?
Because I have fallen in.
不错!前两句要用完成时
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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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