Originally posted by pyliu at 2006-1-11 16:42: 5 C6 s% `8 i' j$ K+ 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: 7 r/ U1 n {! M0 O2 b. U# f5 o4 B爸爸喺到happy緊