put 3 balls on each side, tvb now,tvbnow,bttvb5 {8 ]! w) C8 B5 P% t5 d
if balance, we can prove that all 6 balls on the 天平 is normal,
& s N1 e; w' M5.39.217.77:8898if not balance, we can prove that the 6 balls outside the 天平 is normal.0 h" b1 G4 J7 I+ j
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。5 t U0 l ` A" D. F/ T
to determine the abnormal is heavy and light |