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来源: 于 2010-04-14 17:33:29 [旧帖] [给我悄悄话] 本文已被阅读：次

I do question by heart.So a lot mistakes.Thank you.This question is not good question,I have to use pen and paper.If the question is changed to even number can't meet together,it is good question,and my answer is right.