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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) q4 e2 k6 g" m7 i
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8 B$ |* P% X3 e0 s' tRockland County COVID-19 cases 9,699 by April 22
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/ L% o( {# Q, Y2 p9699 / 325789 = 2.98% !
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% N6 S0 z$ K6 X$ JHow to Get Rid of Bats in the Attic# |! C4 F6 ~" q& O2 d
http://www.wildlifeanimalcontrol.com/bats.html/ c, }, W' q T7 H& e1 ^
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2 m ? w' H% w! r: g r补充内容 (2020-4-22 23:04):
9 G) u; i6 m. D0 fThere have been 23,150 tests performed here (Rockland County), with a 41.9% rate of positives.
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