算算帐啊！你们算算看这个卖鸡的赚了多少? 一个人花8块钱买了一只鸡，9块钱卖掉了，然后他觉得不划算，花10块钱又买回来了，11快卖给另外一个人，问他赚了多少钱 (水城百事)

by 算帐了, Saturday, November 14, 2009, 23:07

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by 哈哈, Saturday, November 14, 2009, 23:33 @ 算帐了

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by 哈哈, Sunday, November 15, 2009, 08:29 @ 哈哈

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by ac, Sunday, November 15, 2009, 13:34 @ 算帐了

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by 容易, Sunday, November 15, 2009, 19:19 @ 算帐了

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