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Re:不是10分钟吧In Reply To:Re:为什么大家都说这么恐怖？其实很简单呀 Posted by:yzy123 at 2009-03-06 13:32:41 1 3
2 4
这样按题意的话1->3中间被占，2->4被占，所以还是20分钟
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