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。/ N0 r" m( d+ i$ @8 K3 ~
if balance, we can prove that all 6 balls on the 天平 is normal,
0 I1 Z/ Z* h) `, B% H! Atvb now,tvbnow,bttvbif not balance, we can prove that the 6 balls outside the 天平 is normal.
Y( h4 P' [. r7 U; q$ v7 T9 p/ p公仔箱論壇then use the proved-normal ball on one side and put the other ball on other side % d" X; p% H. o: U% u$ Y! L
to determine the abnormal is heavy and light |