英语翻译
题目
英语翻译
." IfI,alone or together with my family,work on the land and raise crops,or if I make something useful out of natural material,it seems reasonable and fair to claim that the crops or the objects belong to me or my family,are my property,at least in the sense that I have first claim on them.
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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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