下呼吸道感染的常见因素有A．免疫机能受损B．正常菌群失调C．病原体的飞沫传播D．空调系统污染E．致病菌通过气道逆行感染

作者: rantiku 人气: - 评论: 0

问题下呼吸道感染的常见因素有

选项 A．免疫机能受损 B．正常菌群失调 C．病原体的飞沫传播 D．空调系统污染 E．致病菌通过气道逆行感染

答案 ABCDE

解析

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