百白破疫苗开始接种的时间是A:新生儿 B:2个月 C:3个月 D:8个月 E:4岁

作者: tihaiku 人气: - 评论: 0

问题百白破疫苗开始接种的时间是

选项 A:新生儿 B:2个月 C:3个月 D:8个月 E:4岁

答案 C

解析

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