决定肺部气体交换方向的主要因素是
A.气体的溶解度
B.气体的分压差
C.肺泡膜的通透性
D.气体分子量的大小
E.肺泡膜的面积
参考答案:B
— I don't agree with the complete limitation of private cars on weekends in your report.
— I'm afraid you are _____; what I mean is partial limitation. [ ]
A. missing the point
B. making a breakthrough
C. lost in the dark
D. appreciating my view
可以采用大修理方式进行补偿的设备磨损是()。
A.不可消除性有形磨损
B.第一种无形磨损
C.可消除性有型磨损
D.第二种无形磨损