你懂不懂啥叫概率？

來源: richard_hz 於 2017-10-16 10:14:47 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

也許可以和更清廉先進的美國比比，看看誰被入侵的可能性大些

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