未分类题
对于音频信号来说,由于人耳一般所能听到的最高频率是22.05 kHz,所以使失真最小的采样频率确定为________ kHz即可。
A.05
【参考答案】
44.1
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It seems to the author that the implementation of the new regulation would be______.A.successful and rapidB.necessary and smoothC.effective but gradualD.important but difficult
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Which of the following would be the best title of the passage?A.Reform. in Airline IndustryB.The Hidden Costs of FlyingC.Dispute Between Airlines and RegulatorsD.Pricing Mechanism of American Airlines
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