|  | 试卷的物理题,经过老师讲解还是搞不懂,最好只能请教MF8了 | 
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| 拿起你的魔方,我们就是朋友了! 你准备好了吗? | ||
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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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