如何缩写英文短文
题目
如何缩写英文短文
答案
Most children take part in all kinds of clubs. Parents seem to push their kids do many things. Parents think their own children should do the same things as othre children...
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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.
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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