【单选题】听力原文:Why is the entrance to the building taped? (A) The police marked the area with yellow tape. (B)The access is restricted because of an accident. (C) Yes, it would be wise not to enter. (10)
【单选题】某试制的注射剂(输液)使用后造成溶血,应( )
【简答题】循环系统是一个_____的管道系统,分为________和_____________两部分.
【多选题】压缩式制冷机是由( )等主要部件组成,并用管道连接,构成一个封闭的循环系统。
【简答题】Why did the men standing outside the building refuse to help?
【简答题】Why does the city council support the building?
【单选题】Why will Building 1 be the only dormitory open?
A.
In order to watch the students closely.
B.
To reduce the heating cost.
C.
To keep all the students in the school more safe.
D.
To reduce lighting cost.
【单选题】两楼合用一个集中空调水系统,冷水系统设计供回水温差为4℃,经计算冷水循环泵的扬程为35m,水泵效率为50%,下列关于该空调系统能效输送比的数值及其是否符合要求的说法正确的是________。
A.
该系统的能效输送比为0.045,符合空调冷水管道能效输送比的要求
B.
该系统的能效输送比为0.045,不符合空调冷水管道能效输送比的要求
C.
该系统的能效输送比为0.014,符合空调冷水管道能效输送比的要求
D.
该系统的能效输送比为0.014,符合空调冷水管道能效输送比的要求
【单选题】某试制的注射剂(输液)使用后造成溶血,应改进
【多选题】管道是由( )、支吊架、仪表装置及其他附件构成,管道通过与设备连接,构成一个密闭循环系统,达到输送介质的目的。