put 3 balls on each side, 公仔箱論壇* ]6 h+ }, Q- q0 n* _
if balance, we can prove that all 6 balls on the 天平 is normal, ( t/ f% V/ t5 m8 Z' _1 d
if not balance, we can prove that the 6 balls outside the 天平 is normal.
: k6 J$ I1 q6 G% _6 r4 H1 Ythen use the proved-normal ball on one side and put the other ball on other 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。# O U2 T, X4 e" c0 g* z3 n1 r
to determine the abnormal is heavy and light |
發表於 2011-5-11 04:50 AM
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