put 3 balls on each side, 8 Q8 I$ G- E, V
if balance, we can prove that all 6 balls on the 天平 is normal, 公仔箱論壇. k2 z$ V; @% p
if not balance, we can prove that the 6 balls outside the 天平 is normal.5.39.217.77 C5 G3 ]) S/ j2 ^ ^+ }8 G; L" W
then 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。& @; ?( E" O4 z% r f: I
to determine the abnormal is heavy and light |
發表於 2011-5-11 04:50 AM
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