----She is a good student.----__________.She is very friendly to her friends
题目
----She is a good student.----__________.She is very friendly to her friends
A.So does Jenny.B.So do I C.So can Jenny D.So Jenny is
答案
D.So Jenny is
Jenny确实是这样的
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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