颅咽管瘤
以下哪个是最主要的呼气肌() ["A．膈肌","B．肋间内肌","C．肋间外肌","D．胸大肌","E．腹肌"]
淋证的共同特征是什么() ["A．无尿","B．尿多","C．尿少、尿痛、尿急","D．尿血","E．小便频数短涩、滴沥刺痛，欲出未尽，小腹拘急或痛引腰腹"]
气道分泌物适当清除所需的最低峰咳流值(peakcoughflow，PCF)为() ["A．660L/min","B．500L/min","C．200L/min","D．160L/min","E．100L/min"]
原发中枢神经系统肿瘤
神经系统肿瘤
