超声吸收与下列哪项成正比：A．黏滞性B．频率C．距离D．以上各项均是

作者: rantiku 人气: - 评论: 0

问题超声吸收与下列哪项成正比：

选项 A．黏滞性 B．频率 C．距离 D．以上各项均是

答案 D

解析

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