去甲房按下兩個燈制,等一段時間後,關上其中一個,再到乙房,應該有一個燈有光,兩個燈泡沒光,摸摸兩個沒光的燈泡,哪個是熱的,便知道哪個是開了一段時間然後閉掉的那個 ... ! X' e, Y) I, V1 A. Htvb now,tvbnow,bttvbSongoku1022 發表於 2012-3-2 08:35 PM
heard this before, very difficult for people who studied computer science, but very easy for people who studied chemistry. (we threw this question around at college)