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Re:题目是对的，这是理解问题

Posted by dsa at 2005-04-29 20:39:00 on Problem 2347
In Reply To:题目是对的，这是理解问题 Posted by:hawk at 2005-04-28 20:35:34 
> 题目要求让两个等式都成立，而这个显然不可能让两个都成立
> 所以都是don't know
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