<img alt="" style="width:600px;" src="https://imagepphcloud.thepaper.cn/pph/image/195/823/873.jpg"><img alt="" style="width:600px;" src="https://imagepphcloud.thepaper.cn/pph/image/195/823/890.jpg"><img alt="" style="width:600px;" src="https://imagepphcloud.thepaper.cn/pph/image/195/823/891.jpg"><img alt="" style="width:600px;" src="https://imagepphcloud.thepaper.cn/pph/image/195/823/892.jpg"><img alt="" style="width:600px;" src="https://imagepphcloud.thepaper.cn/pph/image/195/823/893.jpg"><img alt="" style="width:600px;" src="https://imagepphcloud.thepaper.cn/pph/image/195/823/894.jpg"><img alt="" style="width:600px;" src="https://imagepphcloud.thepaper.cn/pph/image/195/823/895.jpg"><img alt="" style="width:600px;" src="https://imagepphcloud.thepaper.cn/pph/image/195/823/896.jpg"><img alt="" style="width:600px;" src="https://imagepphcloud.thepaper.cn/pph/image/195/823/897.jpg"><img alt="" style="width:600px;" src="https://imagepphcloud.thepaper.cn/pph/image/195/823/898.jpg"><img alt="" style="width:600px;" src="https://imagepphcloud.thepaper.cn/pph/image/195/823/933.jpg">《棉签医学科普》北京大学首钢医院，感染与疾病预防控制处，李琪疫情，七步洗手法，疫情防护，正确洗手

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疫情下的个人防护，从这份洗手攻略开始

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《棉签医学科普》 北京大学首钢医院，感染与疾病预防控制处，李琪 疫情，七步洗手法，疫情防护，正确洗手

疫情下的个人防护，从这份洗手攻略开始

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