Originally posted by pyliu at 2006-1-11 16:42:: ?' T, W3 Q: @1 y5 y/ a 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: 2 p' W. O" R8 F# l1 z3 ^爸爸喺到happy緊