楼主: 郝伯道
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有一头猪四百斤,一座桥承重两百斤,猪怎么过桥? |
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发表于 2009-5-21 20:33:17
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发表于 2009-5-21 21:23:59
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发表于 2009-5-21 21:44:05
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