脐带先露(presentation of umbilical cord)
胎膜早破
食管癌的最常见的好发部位是() ["A．颈段","B．上段","C．中段","D．下段","E．贲门"]
下列哪一种不属于胃食管反流病的临床表现() ["A．咽喉炎","B．哮喘","C．上消化道出血","D．食管狭窄","E．鼻窦炎"]
会阴Ⅰ°裂伤指()会阴Ⅱ°裂伤指()会阴Ⅲ°裂伤指() ["A．肛门括约肌部分断裂","B．会阴体肌肉裂伤延及阴道侧沟","C．会阴皮肤粘膜裂伤","D．阴道壁血肿","E．宫颈9点处裂伤长3cm"]
脐带平均长度()脐带过短()脐带过长()
