怀疑发生脊柱骨折的患者,抬送姿势要求() ["A.数人平托","B.搂抱","C.轮椅","D.同时抬头和腿","E.背送"]
胎儿血液循环恰当的是() ["脐静脉血含氧浓度比肺动脉血高","脐动脉生后闭锁成为肝圆韧带","上腔静脉血大部分通过卵圆孔流入左心房","左心室的血液流入动脉导管","肺动脉血液小部分经动脉导管流入主动脉"]
高血压病人术中血压过高的处理不包括()。 ["加深麻醉","纠正低氧和高二氧化碳","外科医师加速操作","膀胱充盈者及时导尿","采用药物控制"]
酸雨的pH小于() ["7.0","6.5","5.6","5.0","4.6"]
妊娠期循环系统变化恰当的是() ["心脏容量至妊娠末期约增加30%","心排出量自妊娠20周逐渐增加","心排出量至妊娠32周达高峰","妊娠晚期舒张压一般偏高","上述都不正确"]
简述脊髓空洞症的Barnett分型。