put 3 balls on each side,
% I% s% ]9 w+ G3 Rif balance, we can prove that all 6 balls on the 天平 is normal,
8 r9 h% _& \- f& ~# Bif not balance, we can prove that the 6 balls outside the 天平 is normal.5.39.217.77:8898- s1 z8 J7 o/ h* ~5 d; _0 F0 |8 r
then use the proved-normal ball on one side and put the other ball on other side
* u, Y% u. v9 O3 zTVBNOW 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 |