 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
0 d+ g$ f: O1 N0 R. n" Vhttps://user.guancha.cn/main/content?id=285543&s=fwzwyzzwzbt
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Rockland County population 325,789 (2019); X- J7 n' F- u0 b8 U3 H, _& ^
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0 O4 W+ Q w- L$ o: R, F/ zRockland County COVID-19 cases 9,699 by April 22
0 v4 h1 X4 t4 j, r. b0 u, w0 Whttps://www.lohud.com/story/news ... dnesday/3002554001/
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' J2 t5 e( S$ I, n5 V, d* F9699 / 325789 = 2.98% !
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How to Get Rid of Bats in the Attic' x" ]3 s' A9 H1 @
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补充内容 (2020-4-22 23:04):
# n6 C9 m& w# K1 ^4 G7 u: F" ~There have been 23,150 tests performed here (Rockland County), with a 41.9% rate of positives.5 O5 h2 d8 y; S8 p3 z1 d
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