put 3 balls on each side,
4 S0 j R+ _& {# ~! G8 v4 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。if balance, we can prove that all 6 balls on the 天平 is normal, tvb now,tvbnow,bttvb) f1 e3 a5 L! q. z1 Z' y
if not balance, we can prove that the 6 balls outside the 天平 is normal.tvboxnow.com+ u/ n" L+ Q" }- Y1 Z; c9 p# V
then use the proved-normal ball on one side and put the other ball on other side
6 p, Q9 M3 a9 V' m' l$ f公仔箱論壇to determine the abnormal is heavy and light |
發表於 2011-5-11 04:50 AM
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