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"]
颈静脉孔由下列哪项组织围绕而成() ["A．枕骨","B．颞骨","C．蝶骨","D．内为枕骨外为颞骨","E．内为蝶骨外为枕骨"]
尿素氮和尿素如何换算?
支配后半规管和球囊的神经是() ["A．前庭神经上神经","B．前庭神经下神经","C．Jacobson神经","D．三叉神经","E．耳蜗神经"]
内耳道底的单孔内走行的是( ["A．前庭神经上终末支的椭园囊神经","B．前庭神经下终末支的球囊神经","C．前庭神经下终末支的后壶腹神经","D．前庭神经下终末支","E．蜗神经"]
血液非蛋白氯包括一些什么物质。
