put 3 balls on each side,
9 f p d3 t4 r3 C+ ptvb now,tvbnow,bttvbif balance, we can prove that all 6 balls on the 天平 is normal, 公仔箱論壇5 r$ H. y$ |, A& E% b8 `9 O7 c
if not balance, we can prove that the 6 balls outside the 天平 is normal./ e/ c2 x) K9 P9 i) z- S' V4 V
then use the proved-normal ball on one side and put the other ball on other side
) l( _4 k2 V; `3 L- U& yTVBNOW 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。to determine the abnormal is heavy and light |
發表於 2011-5-11 04:50 AM
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