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【单选题】
下列名句与作者对应错误的是（ ）。A.
我劝天公重抖擞,不拘一格降人才——
B.
大漠孤烟直,长河落日圆——
C.
会当绝顶,一览众山小——
D.
天下兴亡,匹夫有责——
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举一反三
【单选题】The main theme of the talk is about
A.
noise-control technology.
B.
noise in factories.
C.
noise-control regulations.
D.
noise-related effects.
【单选题】Not until midnight ______.
A.
did the noise stop
B.
the noise stopped
C.
the noise did stop
D.
stopped the noise
【多选题】Noise is a term used for factors that interfere with the exchange of messages, including. Noise is inevitable
A.
external noise
B.
physiological noise
C.
psychological noise
D.
semantic noise
【单选题】When the Fourier spectrum of noise is constant, the noise is called ( )
A.
Rayleigh Noise
B.
white noise
C.
Exponential Noise
D.
Salt-and-Pepper Noise
【简答题】A．Noise-control technology. B．Noise in factories. C．Noise-control regulations. D．Noise-related effects.
【多选题】There are different kinds of noise
A.
Physical noise
B.
Physiological noise
C.
Psychological noise
D.
semantic noise
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