put 3 balls on each side,
1 A) x2 b$ [% }8 _% E0 T% D1 {8 UTVBNOW 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, 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。6 N0 a+ z3 K- T, G# F* A$ f
if not balance, we can prove that the 6 balls outside the 天平 is normal.公仔箱論壇8 l* D, e" T7 n p* b3 k; p8 O/ }$ l
then use the proved-normal ball on one side and put the other ball on other side / M5 b7 M+ Q2 g6 g
to determine the abnormal is heavy and light |
發表於 2011-5-11 04:50 AM
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