CT平扫无法显示的是 ["A．软组织","B．骨骼","C．血液","D．肾上腺","E．脑白质"]
中水泡音多发生在下列哪个部位（） ["气管","中等大小支气管","小支气管","细支气管","终末支气管"]
常规CT扫描采取俯卧位的是 ["A．头颅轴扫 ","B．双膝轴扫 ","C．双踝轴扫 ","D．双腕轴扫 ","E．双髋轴扫"]
径流模数
前列腺常用的扫描模式和层厚、层距是 ["A．高分辨率扫描模式，层厚层距各5mm","B．软组织扫描模式，层厚层距各5mm","C．标准扫描模式，层厚层距各5mm","D．软组织扫描模式，层厚层距各10mm","E．标准扫描模式，层厚层距各10mm"]
径流系数
