中央型肺癌的直接X线征象是() ["A．肺气肿","B．肺不张","C．黏液嵌塞征","D．阻塞性肺炎","E．肺门区及纵隔肿块"]
杵状指(趾)
下述情况属于发热的是() ["A．甲状腺功能亢进引起的体温升高","B．先天性汗腺缺乏引起的体温升高","C．环境高温引起的体温升高","D．妊娠期出现的体温升高","E．抗原抗体复合物引起的体温升高"]
心脏前负荷(cardiacpreload)
现代免疫的概念为() ["A．机体清除损伤细胞的过程","B．机体抗感染的过程","C．机体识别和排除抗原性异物的过程","D．机体抵抗疾病的过程","E．机体抗肿瘤的过程"]
先天性心脏病(congenitalheartdisease，CHD)
