 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
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" E% o, M4 Z+ S! p+ F) p! s; vRockland County population 325,789 (2019)
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6 ?, m8 B. a) C; ?( r% |/ \Rockland County COVID-19 cases 9,699 by April 22
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# l) h' U) K v, n9699 / 325789 = 2.98% !5 C; b2 }0 K- C. ]
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How to Get Rid of Bats in the Attic! ]# k( e8 p3 Y8 Y
http://www.wildlifeanimalcontrol.com/bats.html
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补充内容 (2020-4-22 23:04):
3 P# k' ~! |6 dThere have been 23,150 tests performed here (Rockland County), with a 41.9% rate of positives.9 G0 F7 b6 h& n
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