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。 i- d6 O |1 U4 H
if balance, we can prove that all 6 balls on the 天平 is normal,
% B% I/ T2 s) n6 Q" M/ ]) \1 Yif not balance, we can prove that the 6 balls outside the 天平 is normal.
5 f& `$ a0 S/ M0 }公仔箱論壇then use the proved-normal ball on one side and put the other ball on other side
/ f4 S! a$ A% J L公仔箱論壇to determine the abnormal is heavy and light |