Originally posted by 魚 at 2005-5-28 08:01 PM:
你先去甲屋開一個燈制,等一會,然後關掉它,再開另一個燈制,再走到乙屋,熱而不亮的一個燈泡是第一個燈制所控制,亮的便是第二個,不亮又不熱的便是第三個燈制所控制了。
Originally posted by 王者 at 2005-5-28 09:00 PM:
oh.........i know la~~~~~~~~~~~
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