题目内容

以下音频文件格式,对声音的存储使用有损音频压缩技术的有

A. WAV
B. WMA
C. MP3
D. APE
E. FLAC
F. MIDI

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音频采集与处理中影响数字音频文件质量的几个基本要素是

A. 采样位数
B. 声道
C. 采样频率
D. 数据量
E. 压缩比率

常见的影像文件有( )

A. MP4
B. MPG
C. AVI
D. WAV

Sorry, I’m going to be late. The ________ is really bad today. It must be rush hour.

A. traffic
B. commute
C. pollution
D. direction

I want to go ________ and do some shopping. All the best shops are there.

A. downtown
B. commute
C. transportation
D. direction

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