混凝土的灌注宜先从()开始,以使挂篮的微小变形大部分实现,从而避免新、旧混凝土间产生裂缝。
参考答案:挂篮前端
一肠梗阻术后患者,血清Na+ 130mmol/L,K+ 3mmol/L,Cl-98mmol/L, BUN 8mmol/L,应考虑与下列哪项因素有关
A.补充了大量等渗盐水
B.水分补充不足
C.补充了大量等渗糖水
D.补充了足量的钾盐
E.肾功能不全
The cost baseline has all of the following characteristics EXCEPT:
A) It is a time-phased budget that will be used to measure and monitor cost performance on the project.B) It shows the actual cost expenditures throughout the life of the project.C) It is developed by summing estimated costs by period.D) It is usually displayed in the form of an S-curve.