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转一篇从数理统计角度关于病毒起源的分析8 G* {# r4 z7 ~9 K7 C0 [, E4 J; w3 s
https://user.guancha.cn/main/content?id=285543&s=fwzwyzzwzbt8 r' T# [9 R4 D d: f
4 g6 Y1 t6 j' c( cRockland County population 325,789 (2019). K3 W; W6 g$ V' a3 y
https://www.google.ca/search?sxs ... &sclient=psy-ab
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Rockland County COVID-19 cases 9,699 by April 22
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9699 / 325789 = 2.98% !1 M8 H0 w [6 _, F+ E; c! M
2 B1 i9 L2 i5 {: c1 a, p( ^) XHow to Get Rid of Bats in the Attic H9 X' d, z* K: b" Y& [3 |9 \
http://www.wildlifeanimalcontrol.com/bats.html3 `- Z# ]7 q+ U
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* t$ T% _' P9 f补充内容 (2020-4-22 23:04):- _8 Y. z$ B- o# z: k# C2 g
There have been 23,150 tests performed here (Rockland County), with a 41.9% rate of positives.* |) F& j1 {. d6 Y+ |
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