医生正在进行新冠病毒拭子采集，戴着蓝色手套和个人防护装备，并携带试管来采集咽拭子和鼻拭子，以检测冠状病毒 库存照片 医生正在进行新冠病毒拭子采集，戴着蓝色手套和个人防护装备，并携带试管来采集咽拭子和鼻拭子，以检测冠状病毒
A researcher in white lab coat records observations of small green plants test tubes surrounded by scientific equipment on wooden 皇族释放例证 a researcher in white lab coat records observations of small green plants test tubes surrounded by scientific equipment on wooden
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