It is Sunday,January 12 today?(Sunday,January 12)划线提问 It is March 8.(march.8)
题目
It is Sunday,January 12 today?(Sunday,January 12)划线提问 It is March 8.(march.8)
英语全品上的 ___ ___ today?
___ is the ___?
答案
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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