纵切胎儿脊柱平行光带间距变宽、缺损或形成角度，可提示() ["A．脊柱融合","B．胎儿骶尾部畸胎瘤","C．脊柱裂","D．胎儿背部畸胎瘤","E．正常脊柱"]
足月孕期宫内胎盘的厚度平均为() ["A．1.2～1.5cm","B．2.6～2.9cm","C．3.6～3.8cm","D．4.2～4.4cm","E．5.0～6.0cm"]
黑热病的传播媒介()疟疾的传播媒介()流行性斑疹伤寒的传播媒介()地方性斑疹伤寒的传播媒介() ["A．按蚊","B．中华白蛉","C．恙螨","D．体虱","E．鼠蚤"]
正常宫颈测量值为() ["A．长度不超过3cm","B．前后径不小于3cm","C．前后径不超过3cm","D．长度不超过5cm","E．以上都不是"]
子宫增大的超声诊断标准是长、宽、厚三径相加大于() ["A．15cm","B．16cm","C．17cm","D．18cm","E．14cm"]
伤寒发热的最常见热型是()布氏菌病发热的常见热型是()黑热病发热的常见热型是()疟疾发热的常见热型是()
