内听道病变通常选用的摄影位置是() ["柯氏位、瓦氏位","头颅侧位、后前位","汤氏位、许氏位、梅氏位","斯氏位、颅底位、汤氏位","伦氏位、头颅前后位"]
机械通气过程中产生循环抑制的机制主要有哪些() ["降低回心血量","减少心肌供血","减少心肌氧供","A+B","A+C"]
甲状腺下动脉发自()。 ["椎动脉","甲状颈干","胸廓内动脉","锁骨下动脉","颈外动脉"]
拟诊上颌窦癌并骨质侵犯的患者应首选的摄影位置是() ["俯卧瓦氏位","站立瓦氏位","汤氏位","柯氏位","头颅侧位"]
在体表最易摸到股动脉搏动的部位是()。 ["腹股沟韧带中、外1/3交点下方","腹股沟韧带中、外1/3交点上方","腹股沟韧带中点下方","腹股沟韧带中点上方","腹股沟韧带中、内1/3交点下方"]
严重休克()。无休克()。