呵呵。用计算器算，结果正确，你管过程干啥？你用微波炉，还要知道原理才开始用？呵呵

来源: 知人知面于 2015-04-26 11:03:42 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

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