put 3 balls on each side, 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。9 h# G7 B* z2 M L) c8 ~$ E
if balance, we can prove that all 6 balls on the 天平 is normal,
4 i% R4 G' u; ^' b' K3 Ztvb now,tvbnow,bttvbif not balance, we can prove that the 6 balls outside the 天平 is normal.
$ n# ~4 G# @4 ^5 V1 F. Ctvb now,tvbnow,bttvbthen use the proved-normal ball on one side and put the other ball on other side 5 J6 n/ f) m6 \/ U8 [9 ` f7 T
to determine the abnormal is heavy and light |
發表於 2011-5-11 04:50 AM
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