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。* c5 \+ A! G! [
if balance, we can prove that all 6 balls on the 天平 is normal, 5 l( J9 n* }" D/ v+ F
if not balance, we can prove that the 6 balls outside the 天平 is normal.os.tvboxnow.com* A4 F: {/ ~* |5 ^
then use the proved-normal ball on one side and put the other ball on other side ! b& {( v& p# r2 ?8 L
to determine the abnormal is heavy and light |
發表於 2011-5-11 04:50 AM
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