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不麻烦,可是你这么做首先给每个球编号了,原题没有说除了天平, 还可以用其他工具嘿嘿
shou
(小受)
(#239332@0)
Last Updated: 2001-10-27
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不是微软试题，13个球，有一个球和其他的重量不一样，外观一样。用一个天平称三次，把那个球找出来。你能做到吗？嘿嘿。。。
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