we are on a school trip and everyone is enjoying the trip a lot.
题目
we are on a school trip and everyone is enjoying the trip a lot.
这句话的问句是什么?急求!
答案
Where are you and how's that?
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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