COPD病人机械通气时,合理的通气参数调节是()
A.CPAP
B.增加呼吸频率
C.进行限压通气
D.进行负压通气
E.I:E比值达1:2.5
参考答案:E
The use of the phrase "comes in handy" underlined in Paragraph 2 indicates that the process is ______
A.unavoidable
B.predictable
C.necessary
D.successful
同属于胃癌能量消耗与代谢障碍和胃癌机械性作用的症状是( )
A.乏力B.上腹痛C.恶心D.发热E.饱胀感