楼主: superacid
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2009全国高中数学联赛试题新鲜出炉(附答案) |
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发表于 2009-12-7 16:47:18
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发表于 2009-12-7 17:40:03
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回复 36# 的帖子
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19events = 644days
PB (2 3 4 5)B = 1200seconds 北大魔方爱好者QQ群74893945 mf8最少步讨论群:RP与公式的绝佳配合QQ群5652935 |
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发表于 2009-12-7 21:06:55
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