put 3 balls on each side, 公仔箱論壇, K+ b+ p/ W0 P
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。4 }: Z% V) q3 _
if not balance, we can prove that the 6 balls outside the 天平 is normal.
! n* W m) w# P3 e6 J8 q6 S5 Othen use the proved-normal ball on one side and put the other ball on other side 9 S; k& X) v. [
to determine the abnormal is heavy and light |
發表於 2011-5-11 04:50 AM
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