zhangtianxin 发表于 2012-2-3 15:40

jiayou

数学建模加油！

alair009 发表于 2012-2-3 20:35

zhangtianxin 发表于 2012-2-3 20:51

alair009 发表于 2012-2-3 20:35 static/image/common/back.gif
Morality may consist solely in the courage of ** a choice.  L. Blum 986093169109643122686601

ok i know it

zhangtianxin 发表于 2012-2-3 21:04

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