 鲜花( 170)  鸡蛋( 0)
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转一篇从数理统计角度关于病毒起源的分析
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Rockland County population 325,789 (2019)4 W e7 ~% h: K P9 B; z2 v$ R
https://www.google.ca/search?sxs ... &sclient=psy-ab& \( u0 f) v! L( F6 n
/ e' X5 P f; j1 Y8 b. ?; ~1 SRockland County COVID-19 cases 9,699 by April 22
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7 ^* w2 E, `$ P b- X* ~9699 / 325789 = 2.98% !& P9 p/ X8 |- ?. O
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How to Get Rid of Bats in the Attic
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补充内容 (2020-4-22 23:04):; c! O, B6 c' b+ ]( }" O
There have been 23,150 tests performed here (Rockland County), with a 41.9% rate of positives.* V6 }. O! g" W9 v7 k
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