what can I do for my english learning?
题目
what can I do for my english learning?
答案
practice makes perfect.there is no short way to languaga study,one of the most efficient way is to recite as much as possible.that may be boring and dull,but you are sure to find it works out as you insist on.
come on .
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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