Jack and Lucy are in the same class Jack is() lucy
题目
Jack and Lucy are in the same class Jack is() lucy
Aas old as
Bas older as
Cas oldest as
Das older than
答案
选A
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．
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