put 3 balls on each side, 5.39.217.77; e' h R9 W1 a/ f
if balance, we can prove that all 6 balls on the 天平 is normal, 1 u7 I! N: H4 ?8 T
if not balance, we can prove that the 6 balls outside the 天平 is normal.tvb now,tvbnow,bttvb3 v6 M: d! a2 a3 d- k& w- u( D
then use the proved-normal ball on one side and put the other ball on other side
2 L$ v% Q1 U2 m$ m1 D5 m. VTVBNOW 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 |