How many big men were born in this farm?
题目
How many big men were born in this farm?
no one.
答案
any person born in the farm is "baby",no big man could be born.
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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