以下实例中不能说明声波可以传播信息的是_刷题宝

题干

以下实例中不能说明声波可以传播信息的是（　　）

A：铁路工人用铁锤敲击钢轨检查螺栓是否松动；

B：牙医用超声波洁牙；

C：医生用听诊器了解人心脏、肺的工作情况；

D：利用声呐探测海的深度。

上一题下一题 0.0难度选择题更新时间:2017-03-20 08:52:57

答案(点此获取答案解析）

B

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