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还是步行好 | 2009-12-5 16:17:00
还是步行好
有一个人买了10头驴子，当他骑在一头驴上数数时，发现只有9头驴子，当他下来数时，就有10头驴子。于是他说：“我步行就赚一头驴子，骑驴就损失一头驴子，还是步行好！”
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