I dig out tiny cayes,and store gold and silver in them.I also build brl
题目
I dig out tiny cayes,and store gold and silver in them.I also build brl
I dig out tiny cayes,and store gold and silver in them.I also build bridges of silver and make crowns of gold.they are the smallest you could imagine.sooner or later everybody needs my help,yet many people are afraid to let me help them .who am
答案
我挖出了许多小珊瑚礁,并且把金银存了进去.同时我用银造了几座桥,用金子做了皇冠.你不可能见到比它们还要小的了.总有一天人人都需要我的帮助,然而还是有很多人惧怕我的帮助.我到底是谁呢?
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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