回複：奧地利奧賽題：3元1次方程組（2星）

來源: passenger101 於 2009-02-12 07:41:58 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

(3.1,2.2,5.8)
(3.6,2.7,4.3)

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