交通警察的哨子 - 拼圖
By Yedda
at 2007-11-27T07:06
at 2007-11-27T07:06
Table of Contents
在黃昏的五點半時,西門町的十字路口,人車都非常擁擠。於是有位交通警察每當紅綠燈
號誌一變時,他便「嗶!嗶!」的猛吹哨子。
假如號誌燈每五十秒鐘變換一次,那麼到六點為止,這位警察共吹了幾隻哨子?
puzzlez
2007/11/27
--
號誌一變時,他便「嗶!嗶!」的猛吹哨子。
假如號誌燈每五十秒鐘變換一次,那麼到六點為止,這位警察共吹了幾隻哨子?
puzzlez
2007/11/27
--
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