说的对,一周到2周的持续下降才是真正的下降。3天连接下降带来希望。所以说是个假定。
回答: 三天的下降不足以说明趋势,因为每次都是周末下降。一周下降的话才显示趋势。阳性率下降反应了疫情的缓解。平台期一部分原因是因为测试放
由 learner_2
于 2020-04-28 10:42:57
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