put 3 balls on each side,
7 E; w+ U/ `+ sif balance, we can prove that all 6 balls on the 天平 is normal, tvb now,tvbnow,bttvb0 F' Z2 ]* j) X6 `
if not balance, we can prove that the 6 balls outside the 天平 is normal.8 f) ^, n) N$ s& \* v( y
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。1 A2 B( ]4 Z! `, R
to determine the abnormal is heavy and light |