put 3 balls on each side, 公仔箱論壇3 [, @; i6 o! U) B$ r9 y
if balance, we can prove that all 6 balls on the 天平 is normal, tvb now,tvbnow,bttvb$ H! F; u5 J7 _
if not balance, we can prove that the 6 balls outside the 天平 is normal.
( F0 B+ [; ^" n. B& STVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。then use the proved-normal ball on one side and put the other ball on other side
! l0 {& ] k. Y7 g- \to determine the abnormal is heavy and light |
發表於 2011-5-11 04:50 AM
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