双胎妊娠最常见的胎位是() ["A．双胎均为头位","B．双胎均为臀位","C．一个头位和一个臀位","D．一个头位和一个横位","E．双胎均为横位"]
输卵管哪个部位妊娠具有严重的潜在并发症() ["A．峡部","B．壶腹部","C．漏斗部","D．间质部","E．以上都不是"]
输卵管妊娠以哪个部位最多见() ["A．峡部","B．漏斗部","C．间质部","D．壶腹部","E．以上都不是"]
双顶径的测量方法是() ["A．不包括大脑帘、颅骨壁的回声","B．从一侧颅骨壁外缘至对侧颅骨壁外缘","C．从一侧颅骨壁内缘至对侧颅骨壁内缘","D．从一侧颅骨壁外缘至对侧颅骨壁内缘","E．以上都不是"]
双胎间输血综合征主要发生在() ["A．双卵双胎","B．单卵双胎","C．A和B均是","D．A和B均不是","E．以上都不是"]
麻醉药品---罂粟壳的用法用量
