早产与以下哪项因素无关A．孕晚期发热B．骨盆狭窄C．外伤D．精神打击E．过度疲劳

作者: rantiku 人气: - 评论: 0

问题早产与以下哪项因素无关

选项 A．孕晚期发热 B．骨盆狭窄 C．外伤 D．精神打击 E．过度疲劳

答案 B

解析

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