Originally posted by pyliu at 2006-1-11 16:42:; k8 [: M8 h* ?1 l! x 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: . w! j7 `3 i8 \4 D. `% o爸爸喺到happy緊