Mr Green is too busy to have a good rest in his office
题目
Mr Green is too busy to have a good rest in his office
答案
格林先生太忙了以至于他在办公室不能好好休息一下.
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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