put 3 balls on each side, TVBNOW 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。; l8 A/ o3 W; }
if balance, we can prove that all 6 balls on the 天平 is normal, 5.39.217.777 R9 B# K8 y& i, J4 S
if not balance, we can prove that the 6 balls outside the 天平 is normal.公仔箱論壇, B9 W2 p) X3 o* @# t
then use the proved-normal ball on one side and put the other ball on other side 公仔箱論壇3 b+ E( `- k# z: m' m
to determine the abnormal is heavy and light |
發表於 2011-5-11 04:50 AM
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