put 3 balls on each side,
9 X! a6 ]5 k. ^! i) Y; d: L5.39.217.77if balance, we can prove that all 6 balls on the 天平 is normal,
W# t- g% i7 b1 K7 eif not balance, we can prove that the 6 balls outside the 天平 is normal.
6 _0 p0 A* O# f( M& ]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。then use the proved-normal ball on one side and put the other ball on other side 公仔箱論壇/ q8 N c2 q( e! J
to determine the abnormal is heavy and light |
發表於 2011-5-14 02:38 PM
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