3728| 15
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[比例]关于三角函数中的等比定理 |
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发表于 2012-11-25 18:37:47
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发表于 2012-11-25 20:36:00
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发表于 2012-11-25 23:36:03
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发表于 2012-11-28 19:36:04
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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 2012-12-1 19:41:38
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