put 3 balls on each side, 公仔箱論壇6 |8 `: Q0 e+ S
if balance, we can prove that all 6 balls on the 天平 is normal,
, W, }2 B5 c8 z9 Y [1 _) s6 zif not balance, we can prove that the 6 balls outside the 天平 is normal.5.39.217.76- z) n: l8 S+ ]9 q0 N2 p# a# |
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。( C+ D: U. M; s* L2 V% Y$ M
to determine the abnormal is heavy and light |