标准正常人耳能听到的频率为 A.20~20000Hz B.10~10000H

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问题 标准正常人耳能听到的频率为A.20~20000HzB.10~10000HzC.10~100000HzD.50~50000HzE.10~50000Hz

选项

答案A

解析
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