Thanks ever so much for your help?I realy appreciate it.
题目
Thanks ever so much for your help?I realy appreciate it.
________
A.Got it B.That'sright C.With pleasure D.Don't mention it
答案
选D.Don't mention it别客气.
Thanks ever so much for your help?I realy appreciate it.万分感谢你的帮助吗?我真的很感激.
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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