加拿大卫生官紧急喊话：光戴口罩没用！得这样! http://www.kwcg.ca/bbs/article-217804-1.html (水城百事)

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如果类似埃博拉那样死亡率达到50%会如何

by 匿名, Wednesday, September 23, 2020, 10:50 @ 新闻推送

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by 匿名, Wednesday, September 23, 2020, 11:03 @ 新闻推送

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