婴幼儿易患上呼吸道感染的因素主要是A.居室拥挤 B.免疫特点 C.护理不当 D.疾病影响 E.冷热失调

作者: tihaiku 人气: - 评论: 0

问题婴幼儿易患上呼吸道感染的因素主要是

选项 A.居室拥挤 B.免疫特点 C.护理不当 D.疾病影响 E.冷热失调

答案 B

解析

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