音频的频率范围是A.27~20000Hz B.2000~4000Hz C.2

练习题库2022-08-02  33

问题 音频的频率范围是A.27~20000HzB.2000~4000HzC.20~2000HzD.27~10000HzE.27~2000Hz

选项 A.27~20000Hz
B.2000~4000Hz
C.20~2000Hz
D.27~10000Hz
E.27~2000Hz

答案 B

解析
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