it is good to have people that are out side of the family that are there and that will help me with
题目
it is good to have people that are out side of the family that are there and that will help me with whatever i need help with
答案
在除了家人以外,有这样一个无论我有什么需要都会帮助我的人,真好!.脑细胞死了好多
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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