Originally posted by pyliu at 2006-1-11 16:42: W# Y2 q5 ]8 d8 y 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: " {" }: P1 A3 I, i$ x爸爸喺到happy緊