This number has been less than 3 ever since 1958.

來源: blueVelvet 於 2014-06-18 08:14:13 [] [博客] [舊帖] [給我悄悄話] 閱讀數 : (0 bytes)
回答: 肯定偏高。 由 ctgolfer 於 2014-06-18 08:03:58
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