单肺通气低氧血症发生机制主要是哪些()
A.非通气侧肺萎陷
B.通气侧肺V/Q小于0.8
C.麻醉药抑制非通气侧肺HPV
D.通气压力低导致供氧不足
E.通气不是纯氧
参考答案:A, B
The weather is fine today. ______ yesterday.
A.Neither was it
B.Neither it was
C.So was it
D.So it was
台帐表格栏目中的宾栏项目一般为()
A.管理项目
B.服务项目
C.个人姓名