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疑问？

rosedale(玫瑰谷)

经过第二次称：如果左边等于右边，则说明是在第二次称时没用的3^(k-2)个B球中质量轻的为坏球。？？？
为什么不可以是第二次称时没用的A球中质量重者为坏球？？？？

(#48228@0)
Last Updated: 2001-4-18
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