改错My dog builds himself camps out of sticks,and henever barks or bite.
题目
改错My dog builds himself camps out of sticks,and henever barks or bite.
答案
My dog builds his camp out of sticks ,then he never barks or bites.
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．
我想写一篇关于奥巴马的演讲的文章,写哪一篇好呢?为什么好
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