put 3 balls on each side,
- e8 B. u( ?% G1 s3 o1 b5.39.217.76if balance, we can prove that all 6 balls on the 天平 is normal,
7 i% @; G, v( c; \( w; T7 pif not balance, we can prove that the 6 balls outside the 天平 is normal.
/ [" Z. t" l$ s+ V9 qTVBNOW 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。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。3 S; E* M, P# F$ B( Y; W
to determine the abnormal is heavy and light |