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【单选题】
The shop _____ for two weeks, but I _____ there so far. [ ]A.
has opened; haven't gone
B.
has been open; haven't been
C.
has been open; haven't gone
D.
has opened; haven't been
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举一反三
【简答题】Communication includes nine components, they are: sender/source, __________, channel, message, __________, __________, feedback, noise, __________.
【简答题】Noise in a pulse-code modulation (PCM) system includes noise and noise. While, in a linear delta modulator, there is a special quantization error caused by distortion.
【简答题】Noise includes: ____________ noise, ____________ noise , ____________ noise and ____________ noise .
【单选题】词汇与结构 The departure briefing includes noise abatement procedure and obstacle ______ maneuver.
A.
clearance
B.
overcome
C.
beyond
D.
above
【单选题】听力原文： There are three types of noise that can block communication. The first, external noise includes those obvious things that make it difficult to hear, as well as many other kinds of distractions. ...
A.
Three types of noise that can make communication difficult.
B.
The meaning of external noise.
C.
The effect of cigarette smoke.
D.
The reason why you can become speechless.
【单选题】马斯洛需求层次理论中关于人的需求由低到高分别是（）。
A.
生理需求、安全需求、尊重需求、归属与爱的需求和自我实现需求
B.
生理需求、尊重需求、安全需求、归属与爱的需求和自我实现需求
C.
生理需求、安全需求、归属与爱的需求、尊重需求和自我实现需求
D.
安全需求、生理需求、尊重需求、归属与爱的需求和自我实现需求
【判断题】The amplifier of the optical receiver includes two parts: the preamplifier and the main amplifier. The requirements for the preamplifier are lower noise, wider bandwidth and higher gain. The main ampl...
A.
正确
B.
错误
【简答题】马斯洛需求层次理论认为,人类的需求是分层次的,由低到高,依次是 、 、 、 、 。
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