【单选题】Which of the routine maintenance procedure listed is required for starting air receivers?
A.
Frequent draining of accumulated moisture
B.
Frequent testing of relief valves
C.
A close watch on temperature to prevent fluctuations in pressure
D.
Frequent cleaning to re move oil and foreign matter
【单选题】在密闭容器上装有U形水银测压计,如图所示,其中1、2、3点位于同一水平面上,其压强关系为:
【判断题】按照筹资模式划分,我国社会保障基金的管理模式为完全积累制。
【判断题】以实际的经济业务事项或者资料进行会计核算,会使会计信息质量出现失真。
【单选题】Which of the routine maintenance procedures listed is required for starting air receivers?
C.
low exhaust temperature
D.
high crankcase pressure
【单选题】Routine maintenance on a Central Control Room hermetically sealed air conditioning unit should include _________.
A.
changing the air filter
C.
changing compressor lubricant
D.
renewing container vacuum
【单选题】238,建立科学合理的组织结构,使企业内部各单位、各部门、各岗位的责、权、利相一致,以确保企业目标顺利实现的工作是管理的()。