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不明白，难道存在一个站建两个的情况？

Posted by zerocool_08 at 2005-10-12 13:56:56 on Problem 2607
In Reply To:呵呵，你如果仔细看这句话就知道错在哪儿了：There may be more than one firestation per intersection. Posted by:huicpc16 at 2005-09-15 19:03:33 
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