現有九顆鑽石,其中一顆為假,假的鑽石比較輕,
有一無砝碼之天平,如何在兩次秤重內,找出假的鑽石?
要是你跌在地上,就想辦法抓一把沙。
Jake Hsiao--Self-trust is the first secret of success.. Copyright 2008 All Rights Reserved Revolution Two Church theme by Brian Gardner Converted into Blogger Template by Bloganol dot com
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