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。1 S* d& ]# c# y# Q) ^4 Y( T8 L6 x
if balance, we can prove that all 6 balls on the 天平 is normal,
5 ^8 E- Y( a0 ]$ f( G( dtvb now,tvbnow,bttvbif not balance, we can prove that the 6 balls outside the 天平 is normal.
8 p* e* v% _4 o% sthen 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。: t! `3 y5 k/ M$ d) s5 O
to determine the abnormal is heavy and light |