符合Ⅰ型呼吸衰竭的动脉血气标准是() ["PaO为50mmHg,PaCO为40mmHg","PaO为55mmHg,PaCO为50mmHg","PaO为65mmHg,PaCO为40mmHg","PaO为70mmHg,PaCO为40mmHg","PaO为70mmHg,PaCO为45mmHg"]
1979年WH0将冠心病分为()。 ["5型","6型","3型","2型","4型"]
有关二尖瓣狭窄的血流动力学改变,下列哪项是错误的() ["肺毛细血管压力增高","左心房压力增高","左心室肥大","肺动脉高压","血流经二尖瓣口时跨瓣压差增加"]
命令cp和mcopy在Linux下的功能是()。 ["cp具有文件拷贝的功能","mcopy也具有文件拷贝的功能","软驱没有加载的情况下,可以用mcopy直接拷贝软盘中数据","软驱没有加载的情况下,可以用cp直接拷贝软盘中数据"]
治疗HIV感染的首选药是() ["干扰素","利巴韦林","阿昔洛韦","齐多夫定","阿糖胞苷"]
放射性131I甲状腺摄取率正常值为吸碘高峰一般在()h,最高不超过()%。