小儿传染病发病率最高的年龄段是:A.新生儿期B.婴儿期C.幼儿期D.幼童期E.儿童期

作者: rantiku 人气: - 评论: 0
问题 小儿传染病发病率最高的年龄段是:
选项 A.新生儿期 B.婴儿期 C.幼儿期 D.幼童期 E.儿童期
答案 C
解析

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