24周胎儿股骨超声检查如图，最可能的诊断是() ["A．致死性骨发育不全","B．内翻足","C．羊膜带综合征","D．骨硬化症","E．并指(趾)畸形"]
莱姆病的潜伏期为__，平均为__。
超声检查如图，孕囊内光环样结构为() ["A．胚芽","B．羊膜囊","C．卵黄囊","D．脐带","E．胎儿"]
莱姆病的神经系统病变主要为____和____病变。
胎儿心脏超声检查如图，最可能的诊断是() ["A．法四","B．右心发育不良综合征","C．左心发育不良综合征","D．心内膜垫缺损","E．大动脉换位(TGA)"]
莱姆病神经系统症状三主征为__、__、__。
