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【单选题】
带电导体达到静电平衡时,其正确结论是A.
导体内任一点与其表面上任一点的电势差等于零
B.
导体内部任一点电势都为零
C.
表面曲率较小处电势较高
D.
导体表面上曲率半径小处电荷密度较小
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举一反三
【判断题】A LAN may be used to interconnect workstations distributed around offices within a single building or a group of buildings such as a university campus.
A.
正确
B.
错误
【单选题】在船员职责分工中,三管轮应负责维护管理的设备有______。 I.舵机系统中的液压泵;II.锚机;III.舵机;IV.绞缆机;V.起货机;VI.发电柴油机。
A.
Ⅰ+Ⅱ+Ⅲ
B.
Ⅰ+Ⅱ+Ⅳ
C.
Ⅱ+Ⅳ+Ⅵ
D.
Ⅱ+Ⅳ+Ⅴ
【单选题】What is the closest meaning of " post-occupancy evaluations " in the following passage? Such work is vital for building an archive of knowledge on human spatial behaviour, such that may be used in fut...
A.
Evaluations made before the project is built.
B.
Evaluations made after the project is built.
C.
Evaluations made when the project is undergoing.
【简答题】空气流量传感器的应用有哪些?
【单选题】城市主干道的水泥混凝土路面不宜选择的主要原材料是( )。
A.
42.5级以上硅酸盐水泥
B.
粒径小于19.00mm的砂砾
C.
粒径小于31.5mm碎石
D.
细度模数在2.5以上的淡化海砂
【简答题】作用在刚体上的力可沿其作用线任意移动，而 [填空(1)] 力对刚体的作用效果。A. 不改变
【单选题】Specialty architects and engineers are often engaged for designing a specific type of building,while the builders or ( )undertaking such projects may also be specialized in only that type of building.
A.
total contract
B.
general contractors
C.
all of contractors
D.
contractual
【单选题】In the sentence 'The second stage then ignites, providing the energy necessary to lift the satellite into orbit.', 'ignites' means ______ .
A.
starts
B.
blasts off
C.
departs
D.
fires
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