回複：你的思路很好，但題目這是針對最後一種情況，而且應該隻有一個確定的答案

來源: 於 2010-02-12 09:42:22 [舊帖] [給我悄悄話] 本文已被閱讀：次

I did not get it- you have to explain to me why other two answers are not good -
3x:5x:8x
1x:3x:4x