put 3 balls on each side, & Z2 q1 `: a6 R0 a4 L2 W
if balance, we can prove that all 6 balls on the 天平 is normal,
1 E2 n) V1 x5 S' Q8 l1 cif not balance, we can prove that the 6 balls outside the 天平 is normal.
" X8 L' K) h0 J5 k& ^ n$ O4 L5.39.217.76then use the proved-normal ball on one side and put the other ball on other side
$ L8 j- K. K! {- rTVBNOW 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 |