肺毛细血管楔压的正常值范围是()
A.5~10cmH2O
B.6~15mmHg
C.10~22mmHg
D.30~44mmHg
E.60~80mmHg
参考答案:B
Afraid __________? This type of anxiety can deeply disturb people’s enjoyment of social relationships.
A.of laughing at
B.to be laughed at
C.of being laughed at
D.being laughed at
液体可燃物燃烧的阶段性没有固体明显,一般情况下,主要取决于液体的闪点、面积、液体初温、液位的高度以及液体盛装设备的导热性能等。