人耳能感觉到的声波频率范围为( )A.20~4000Hz B.20~8000H

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问题 人耳能感觉到的声波频率范围为( )A.20~4000HzB.20~8000HzC.20~1000HzD.20~20000HzE.20~2000Hz

选项 A.20~4000Hz
B.20~8000Hz
C.20~1000Hz
D.20~20000Hz
E.20~2000Hz

答案 D

解析
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