
Originally posted by pyliu at 2006-1-11 16:42:; E# a0 [5 D# y& o: W [) K
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:# @) m4 D+ L/ F# a& W7 a% @# h
爸爸喺到happy緊![]()
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