She went to the market,______ eggs and returned home.
题目
She went to the market,______ eggs and returned home.
C.bought two dozen D.to buy two dozen of
答案
C.bought two dozen
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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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