代谢性酸中毒时,以下哪一项指标升高
A. 血pH值
B. 血钾浓度
C. 二氧化碳结合力
D. 标准碳酸氢盐
E. 二氧化碳分压
下列施工图预算审查的方法中,( )仅适用于采用标准图纸的工程。
A. 逐项审查法
B. 标准预算审查法
C. 分组计算审查法
D. 对比审查法
以下反映肺换气功能的参数是
A. 肺活量
B. 一氧化碳弥散指数
C. 用力肺活量
D. 肺总量
E. FEV1
Which of the following statements best describes the organization of the second paragraph()
A. Two contrasting views of a problem are presented.
B. An evaluation is explained and then reasons are given.
C. A problem is examined and possible answers are given.
D. Historical view is explained in comparison with the present.