 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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% z! ^5 `8 z; ?8 }- xRockland County population 325,789 (2019)
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Rockland County COVID-19 cases 9,699 by April 22
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9699 / 325789 = 2.98% !
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. z$ k5 E( b8 |3 |) P5 i3 ?How to Get Rid of Bats in the Attic, Q; P1 _9 I% B+ ]
http://www.wildlifeanimalcontrol.com/bats.html
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/ [/ a; }+ o" o3 Z$ U补充内容 (2020-4-22 23:04):: Y& F, ]% j$ `# D
There have been 23,150 tests performed here (Rockland County), with a 41.9% rate of positives.# N8 Q( } U. O/ N( c+ ]
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