1000Hz纯听阈声压为A．5μPaB．10μPaC．15μPaD．20μPaE．30μPa

作者: rantiku 人气: - 评论: 0

问题 1000Hz纯听阈声压为

选项 A．5μPa B．10μPa C．15μPa D．20μPa E．30μPa

答案 D

解析

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