put 3 balls on each side, tvb now,tvbnow,bttvb% x- \4 m9 F9 f& X* F4 y& Y; S6 n
if balance, we can prove that all 6 balls on the 天平 is normal, 公仔箱論壇5 Q1 m' K! F0 Y' O8 J
if not balance, we can prove that the 6 balls outside the 天平 is normal.
/ F- z0 {3 x; ^" y' k+ {6 E H' a$ atvb now,tvbnow,bttvbthen use the proved-normal ball on one side and put the other ball on other side
( S7 X6 A) _& ^9 @, a. MTVBNOW 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 |
發表於 2011-5-11 04:50 AM
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