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【简答题】
在《民用建筑供暖通风与空气调节设计规范》中规定采用热水作热媒的散热器供暖系统中宜采用( )°C为参数进行供暖。且供回水温差不宜小于( )°C。
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举一反三
【单选题】Among the basic categories of equipment, which of the following are used to allow the hydraulic energy to be controlled?
A.
hydraulic pumps
B.
valves
C.
hydraulic cylinders
D.
hydraulic motors
【单选题】Among the basic categories of equipment, which of the following are used to convert the hydraulic energy into linear motion?
A.
hydraulic pumps
B.
valves
C.
hydraulic cylinders
D.
hydraulic motors
【简答题】渗出性出血的原因是什么？
【单选题】Which of the following is not among the basic features of a relational database?
A.
It does not matter what order the rows are in.
B.
It does not matter what order the columns are in.
C.
Different columns should have different column names.
D.
Different columns should have different data types.
【单选题】Among the basic categories of equipment, which of the following is used to convert hydraulic energy into continuous rotary motion?
A.
hydraulic pumps
B.
valves
C.
hydraulic cylinders
D.
hydraulic motors
【单选题】关先生,33岁,阑尾切除术后第3日,体温39.4°C,主诉伤口疼痛,检查发现切口红肿,有压痛。应首先考虑
A.
外科热
B.
感冒
C.
切口感染
D.
切口缝线反应
E.
肺炎
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