輕和重沒關係,我的這種方法是秤三次肯定可以分出異常重量的球。
回複:回複:回複:用天平稱乒乓球
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• 回複:回複:回複:回複:用天平稱乒乓球 -異言- ♂ (131 bytes) () 05/09/2010 postreply 21:23:40
• 回複:回複:回複:回複:用天平稱乒乓球 -異言- ♂ (131 bytes) () 05/09/2010 postreply 21:23:40
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