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。5 h8 G' @8 \. y' s1 l+ O. b* ~
if balance, we can prove that all 6 balls on the 天平 is normal, tvb now,tvbnow,bttvb6 E7 H3 o8 T7 t' }& Z
if not balance, we can prove that the 6 balls outside the 天平 is normal.
4 h- C7 S* _, o1 ithen use the proved-normal ball on one side and put the other ball on other side
3 K3 [( Z% k- ]" r4 [7 pto determine the abnormal is heavy and light |
發表於 2011-5-11 04:50 AM
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