回复：美国奥赛题：圆桌会议（3星）

来源: endofsuburbia 于 2009-03-31 20:42:25 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

1+4^3/2+6^3/3+4^3/4+1

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