They both have _____ work to do,so they are _____ busy.(单选题)
题目
They both have _____ work to do,so they are _____ busy.(单选题)
答案
They both have _much____ work to do,so they are _very____ busy
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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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