as far as know和as much as i know的差别?(十分奖励`)
题目
as far as know和as much as i know的差别?(十分奖励`)
as far as know可以写长as far as i know吗?
那as far as i know和as much as i know的差别?
答案
我也没有见过有人用as far as know...,只见过as far as I know 和as far as is known,两者基本上可以通用.
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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