粉尘导致尘肺的发病作用是() ["A．超敏反应","B．致癌作用","C．中毒作用","D．致纤维化作用","E．局部刺激作用"]
R-on-T现象
右侧支气管异物致呼气性活瓣阻塞时，纵隔摆动的方向是() ["A．吸气时纵隔向左移动","B．呼气时纵隔向右移动","C．吸气时纵隔向右移动，呼气时不动","D．呼气时向左移动，吸气时向右移动","E．呼气与吸气时均不见摆动"]
化脓性肺炎的X线特征性表现是() ["A．蜂窝状薄壁透光区，有时伴有液平面","B．厚壁空洞，周围伴有炎性浸润","C．片状小病灶影","D．炎性浸润灶","E．脓气胸"]
病毒性心肌炎(viralmyocarditis)
无青紫型先心病
