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标题: 12.30 数学50 放狗 [打印本页]

作者: jkluio    时间: 2011-12-30 19:37
标题: 12.30 数学50 放狗
1.DS题: m!/n!> n^3?
(1) m-n>= 3
(2) m?=3n




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