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转一篇从数理统计角度关于病毒起源的分析, f0 a- _, j: M& O, i
https://user.guancha.cn/main/content?id=285543&s=fwzwyzzwzbt K; o- I, c0 F2 e
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Rockland County population 325,789 (2019)$ T. ]* c- I( j& L$ I
https://www.google.ca/search?sxs ... &sclient=psy-ab
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- V0 f0 R* k( P/ lRockland County COVID-19 cases 9,699 by April 22) Z* T/ f1 M3 ~) i
https://www.lohud.com/story/news ... dnesday/3002554001/
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9699 / 325789 = 2.98% !4 P) k6 _ V4 b; j ?( e: ~
+ n: _" H* L' S: K: f: \$ q3 yHow to Get Rid of Bats in the Attic
/ |8 a. c/ d+ f2 T' m3 ?/ a& Thttp://www.wildlifeanimalcontrol.com/bats.html$ ^8 H- o5 Z- r, d- p1 e. d
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补充内容 (2020-4-22 23:04):, b i H3 z6 ^- u7 m( H
There have been 23,150 tests performed here (Rockland County), with a 41.9% rate of positives.
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