来自细支气管Clara细胞和Ⅱ型肺泡细胞的癌为() ["A．腺癌","B．细支气管肺泡癌","C．大细胞癌","D．类癌","E．小细胞癌"]
简述室间隔缺损的手术治疗原则?
某肺心病患者受凉、肺部感染而住院，血气分析结果：pH7．33，PaCO270mmHg，HCO3-36mmol／L。该患者可诊断为() ["A．混合性酸中毒","B．慢性呼吸性酸中毒","C．急性呼吸性酸中毒","D．代谢性碱中毒","E．代谢性酸中毒"]
下列哪种类型的肺癌易形成空洞() ["A．小细胞未分化癌","B．大细胞未分化癌","C．腺癌","D．肺泡上皮癌","E．鳞状上皮癌"]
与IgE抗体高亲和的细胞是() ["A．树突状细胞和巨噬细胞","B．单核细胞和淋巴细胞","C．中性粒细胞和嗜碱性粒细胞","D．肥大细胞和嗜碱性粒细胞","E．红细胞和嗜酸性粒细胞"]
简述室间隔缺损的心电图特点?
