Originally posted by pyliu at 2006-1-11 16:42:! u: A4 a1 R0 ^4 A6 ^+ n% D 問題:已知媽媽比兒子大21歲。六年後,媽媽的歲數是兒子的五倍。問爸爸現在在哪裏?
Originally posted by Tokyo2040 at 2006-1-11 09:54 AM: # v% [& l+ h: O! V/ g4 c爸爸喺到happy緊