清理外耳道时引起咳嗽是由于刺激了() ["A．下颌神经耳颞支","B．迷走神经耳支","C．耳大神经","D．枕小神经","E．舌咽神经分支"]
血友病患者突发胸闷，气急，体查见颈静脉显露，嘴唇发绀，影像学检查如图，最可能的诊断为() ["A．纵隔自发性出血","B．淋巴瘤","C．结节病","D．纵隔积液","E．胸腺瘤"]
简述高密度脂蛋白中胆固醇测定的原理。
Corti器位于() ["A．前庭膜","B．基底膜","C．耳石膜","D．螺旋韧带","E．蜗窗膜"]
人骨蜗管旋绕蜗轴的周数是() ["A．0.5","B．0.75","C．1.25～2.25","D．2.5～2.75","E．3.5～3.75"]
血浆脂蛋白的化学组成怎样?
