有效數字那門課也沒上過，萬分之一概率的事件，您用一百一千作單位來統計，結果除了零，還有啥？

來源: 原野青蛙於 2015-01-30 14:11:33 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

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