put 3 balls on each side,
# ]6 H6 m4 C& F! N9 }if balance, we can prove that all 6 balls on the 天平 is normal,
$ d2 {; l% _' W5 g3 _2 c! Pos.tvboxnow.comif not balance, we can prove that the 6 balls outside the 天平 is normal.公仔箱論壇0 G& T1 h# B r5 f
then use the proved-normal ball on one side and put the other ball on other side
) p2 G/ G( ~5 }' LTVBNOW 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。to determine the abnormal is heavy and light |