Mr Li liked fishing very much.This summer the weather was beautiful,so he decided to travel around
题目
Mr Li liked fishing very much.This summer the weather was beautiful,so he decided to travel around
答案
李先生非常喜欢钓鱼.今年夏天天气很好,所以他决定去附近旅行.
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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