主动杀灭新冠病毒的口罩、净化消毒卡、蓝光消毒喷雾枪、次氯酸消毒片……最近在电商平台层出不穷的新冠病毒灭杀神器和消毒神器,是黑科技还是智商税?北京青年报记者就这些在电商平台火爆的防疫爆款产品进行了调查。发现灭活新冠抑制率达99.97%?
Medvedevsaid in a statement that he and colleagues fitted their creation in the inner layer of a conventional three-layer medical mask.梅德韦杰夫