He understands that friendship is about feeling and that we must give as many as we take 单句改错
题目
He understands that friendship is about feeling and that we must give as many as we take 单句改错
答案
as much as
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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