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Which of the following best describes the relationship of the first paragraph to
Which of the following best describes the relationship of the first paragraph to
游客
2024-01-13
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问题
Which of the following best describes the relationship of the first paragraph to the passage as a whole? [br] According the passage, one of the ways in which analog recording systems differ from digital recording systems is that analog systems______
选项
A、can be used to reduce background noise in old recordings
B、record the original sound as a continuous waveform
C、distort the original sound somewhat
D、can avoid introducing extraneous and nonmusical sounds
E、can reconstruct the original waveform with little loss inquality
答案
B
解析
This question asks you to identify something mentioned specifically in the passage that is a feature of analog recording systems that is not shared by digital recording systems. Choice B is the best answer. The passage states in lines 10-13 that analog recording systems represent the original sound as a continuous waveform, while in lines 21-23 it notes that digital recordings reduce the original sound to a series of discrete numbers. Neither A, D, or E are features of analog systems, according to the passage. Choice C is not correct: while the passage does say that analog recording systems distort the original sound, the passage also notes that “it is impossible for digital systems to avoid some distortion” (lines 31-32). Thus some amount of sound distortion is involved in both analog and digital recording processes.
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