关于频谱多普勒技术的应用，正确的是() ["A．测量血流速度","B．确定血流方向","C．确定血流的种类如层流射流等","D．了解组织器官的结构","E．获得速度时间积分压差等有关血流的参数"]
眼科影像的常规检查不包括() ["A．X平片","B．超声波检查","C．DSA","D．CT","E．MRI"]
下列哪对脑神经与眼无关() ["A．第三对脑神经","B．第八对脑神经","C．第六对脑神经","D．第二对脑神经","E．第四对脑神经"]
含液性病变的声像图特点中，下列哪项是错误的() ["A．外形呈圆形或椭圆形","B．边缘光滑、整齐","C．内部低回声或强回声","D．后方回声增强","E．侧方声影有内收"]
超声诊断利用超声的主要物理原理是() ["A．辐射","B．反射","C．衍射","D．散射","E．折射"]
儿童和青年期肌阵挛发作首选药物为()癫癎复杂部分性发作首选药物为()肌无力危象首选药物为()
