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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)
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Rockland County COVID-19 cases 9,699 by April 227 M! E1 Q) G7 E/ {1 w0 j" G7 n
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4 G2 S' X, l( u# J6 _9699 / 325789 = 2.98% !
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& E6 C" P1 I% E$ A! d! d. J3 Y$ \How to Get Rid of Bats in the Attic
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; Q8 }1 K1 F; z5 P) v$ y补充内容 (2020-4-22 23:04):
6 N+ M8 ?4 [% q, q0 XThere have been 23,150 tests performed here (Rockland County), with a 41.9% rate of positives.4 |5 ~7 a: D2 i: X7 }
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