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Re:....这样最下面一张会挂掉吧？

Posted by wanghexiang221 at 2006-10-28 20:09:49 on Problem 1003
In Reply To:....这样最下面一张会挂掉吧？ Posted by:mixteR at 2006-10-27 09:35:07 
挂掉? (跌落？）
每张牌应该都处于跌落的边缘，这样的一堆牌应经不起任何扰动。
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