Li Ping joined ____ League in 2002.He has been ____ League member for years.
题目
Li Ping joined ____ League in 2002.He has been ____ League member for years.
Li Ping joined ____ League in 2002.He has been ____ League member for years.
A.a,a B.the,the C.a,the D.the,a
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．
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