如果宇宙有1億3千6百萬顆各種星球，求其中存在與地球幾乎完全1樣的星球之概率為幾？

來源: 大江川於 2012-10-28 18:57:09 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

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