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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)* s6 p( z4 _+ Q% e7 n7 J0 Z3 p
https://www.google.ca/search?sxs ... &sclient=psy-ab
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4 k- m4 c, f9 CRockland County COVID-19 cases 9,699 by April 22
$ o: c, R, ]5 p. M1 i- [https://www.lohud.com/story/news ... dnesday/3002554001/& |1 W0 j3 I0 x
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9699 / 325789 = 2.98% !
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How to Get Rid of Bats in the Attic. B) V. b; g) _! T
http://www.wildlifeanimalcontrol.com/bats.html1 ?5 i6 L5 x% g
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补充内容 (2020-4-22 23:04): d1 l5 N6 s, a
There have been 23,150 tests performed here (Rockland County), with a 41.9% rate of positives.$ }6 f# v8 E2 @$ W6 R4 j
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