能了解鼻咽癌肿瘤沿肌肉、神经蔓延情况的检查方法是() ["A．颅底X像","B．CT扫描","C．MR扫描","D．B超扫描","E．放射性核素扫描"]
哪些肾实质疾病或因素可导致急性肾功能衰竭?
肋骨摄影不宜采用() ["A．膈上肋骨前后位","B．膈下肋骨前后位","C．肋骨斜位","D．肋骨切线位","E．肋骨侧位"]
试述呼气终末正压通气(PEEP)治疗急性呼吸窘迫综合征
起源于扁桃体区的癌颈淋巴结转移率() ["A．很低","B．较低","C．基本同颊粘膜癌","D．很高","E．较高"]
引起肺栓塞的病因有哪些?
