put 3 balls on each 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。' w1 x Y1 y& v% e+ T4 x9 B$ E T
if balance, we can prove that all 6 balls on the 天平 is normal,
0 Z, h" U8 X, i, D4 C. d+ @公仔箱論壇if not balance, we can prove that the 6 balls outside the 天平 is normal.
0 b3 j! D" t3 l& ]& Swww1.tvboxnow.comthen use the proved-normal ball on one side and put the other ball on other side
. i/ m5 j6 b9 l+ itvb now,tvbnow,bttvbto determine the abnormal is heavy and light |