婴儿出现以下症状可考虑先天性心脏病,但应除外() ["喂养困难","易患肺炎","持续性青紫","哭声嘶哑","嗜睡"]
《电力法》是什么时间颁布和正式实施的?
哪项不是协调性(低张性)宫缩乏力特征?() ["持续腹痛,拒按","宫颈口扩张缓慢","宫缩间歇期,子宫肌肉仍不放松","子宫压痛,胎位不清楚","镇静药效果不明显"]
障碍历时是从()时间算起。 ["发生","派修","修复","恢复"]
输卵管妊娠最常见原因是() ["输卵管炎症","孕卵游走","输卵管过细、过长","卵巢肿瘤","输卵管肌层发育不良"]
病因学(etiology)