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【判断题】
蝴蝶是对称美的典范,它拥有对称的翅膀。A.
正确
B.
错误
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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】党在过渡时期对农业进行社会主义改造的群众基础是( )
A.
正确分析农村的阶级和阶层状况，制定正确的阶级政策
B.
在全国农村进行全面的土地改革运动，解决农民的土地问题
C.
积极引导农民组织起来，走互助合作的发展道路
D.
坚持积极领导、稳步前进的方针，采取循序渐进的步骤
【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.
【多选题】Environment pollution includes _____.
A.
air pollution
B.
soil pollution
C.
water pollution
D.
noise pollution
【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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