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【单选题】
在Word 2010中,用拖放鼠标方式进行复制时,需要在______的同时,拖动所选对象到新的位置。5
A.
按Ctrl键
B.
按Shift键
C.
按Alt键
D.
不按任何键
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【单选题】图示正弦电路中, ,有效值 ,则总电压有效值 为( )。
A.
178.9V
B.
226V
C.
120V
D.
220V
【单选题】— May I park my car here? — No, you ______. No car is allowed to park here.
A.
may not
B.
needn't
C.
mustn't
D.
daren't
【多选题】加强党的建设主要包括( )
A.
思想建设
B.
组织建设
C.
作风建设
D.
制度建设
【单选题】Firefighters are often asked to speak to school and community groups about the importance of fire safety,particularly fire prevention and detection. Because smoke detectors reduce the risk of dying in...
A.
outside fumes may trigger a false alarm.
B.
a draft may create dead-air space.
C.
a draft may pull smoke away from the detector.
D.
outside noises may muffle the sound of the detector.
【多选题】加强党的建设主要包括( )
A.
思想建设
B.
组织建设
C.
作风建设
D.
制度建设
E.
反腐倡廉建设
【判断题】研究幼儿的自我意识发展的经典实验之一是点红实验。
A.
正确
B.
错误
【判断题】X6132 铣床有纵向、横向和垂向三个方向。
A.
正确
B.
错误
【单选题】脊髓腔穿刺后,病人脑压过低引起疼痛的机制是( )
A.
脑部血液循环障碍
B.
脑代谢障碍
C.
脑部缺血、缺氧
D.
脑压过低牵张颅内静脉窦和脑膜
E.
脑膜受刺激
【单选题】Firefighters are often asked to speak to school and community groups about the importance of fire safety,particularly fire prevention and detection. Because smoke detectors reduce the risk of dying in...
A.
50% better chance of surviving a fire.
B.
50% better chance of preventing a fire.
C.
75% better chance of detecting a hidden fire.
D.
100% better chance of not being injured in a fire.
【判断题】DCS是分散控制系统(Distributed Control System)的简称,国内一般习惯称为集散控制系统。它是一个由过程控制级和过程监控级组成的以通信网络为纽带的多级计算机系统。
A.
正确
B.
错误
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