love is that condition in which the happiness of another person is essential to your own
题目
love is that condition in which the happiness of another person is essential to your own
答案
当你沐浴爱河的时候另一半的幸福是你的根本所在.
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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