Their motives for undertaking this study are highly questionable.
他
承担这项研究
动机大有
。
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讯 2013年6月合集 Last year at this time, the agency did not recommend that the public wear masks, and a medical professor told CNN this was because this was only quote " thin and questionable scientific evidence that wearing masks had any benefit" .
去年这个时候,疾控中心还不建议公众佩戴
,
位医学教授告诉CNN,这是因为当时佩戴
有任何好处的科学证据不足且值得怀疑。
对话
个美国新娘的自
精选