 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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, U: L4 I! M' M6 y! [Rockland County population 325,789 (2019), @4 j8 @: K5 v7 P
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Rockland County COVID-19 cases 9,699 by April 22
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How to Get Rid of Bats in the Attic
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( w& s* z% X, I4 t: u补充内容 (2020-4-22 23:04):( l3 k7 S+ Z% C$ J4 [! E
There have been 23,150 tests performed here (Rockland County), with a 41.9% rate of positives.
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