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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)
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Rockland County COVID-19 cases 9,699 by April 22. {. Z5 b* K. V- M" Q
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9699 / 325789 = 2.98% !) X4 K! p, W$ }6 f. W: Q
2 h) [+ e3 d/ t- g/ Z' F9 LHow to Get Rid of Bats in the Attic9 b/ K! `4 w6 P# n5 A& c( \
http://www.wildlifeanimalcontrol.com/bats.html
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补充内容 (2020-4-22 23:04):
! g% O0 e- D; K- [' r$ M, RThere have been 23,150 tests performed here (Rockland County), with a 41.9% rate of positives.
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