请用英语回答：Who are the top 10 of the richest men in the world?
题目
请用英语回答：Who are the top 10 of the richest men in the world?
答案
CLICK To Know Top 10 Richest Person In The World 2009 1) The American investor and philanthropist Warren Buffet is worth an estimated $62 billion,up $10 billion from a year ago thanks to surging price...
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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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