原式=4-2-21×143,
=2-2-72,
=2-82.
He became inspired when he thought about helping ordinary people to cholera.
A.expose
B.exposed
C.exposing
D.to expose
患者女性,46岁。因患类风湿关节炎长期服泼尼松片30mg/d。今起出现发热,伴气急、咳嗽、痰多,肺部闻及湿啰音,胸片示双肺弥漫性渗出性改变,动脉血气分析示PaO245mmHg,PaCO235mmHg,拟诊ARDS。
为改善低氧,下列哪一项措施是最合适的()。
A.气管切开后机械通气
B.经口气管插管机械通气
C.面罩吸氧
D.鼻导管吸氧
E.BiPAP辅助通气