put 3 balls on each side,
; J- a; a8 P+ B7 H: P1 k7 W: sTVBNOW 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。if balance, we can prove that all 6 balls on the 天平 is normal,
8 A, }8 }6 u1 M/ B0 S% Bwww3.tvboxnow.comif not balance, we can prove that the 6 balls outside the 天平 is normal.
# h+ v5 y; c- t4 F6 o& h0 ewww3.tvboxnow.comthen use the proved-normal ball on one side and put the other ball on other side
% p5 \1 }8 [7 U @" p- I+ [to determine the abnormal is heavy and light |
發表於 2011-5-11 04:50 AM
| 
