Physics Unit12: Sound (id: 8cf04f0d0)

本题目来源于试卷: Physics Unit12: Sound，类别为 通用国际物理

[单选题]
In order to produce bzil7k jpw/)q - m(c:qteats, the two w sjwj.l6m+:,vra l;d sound waves should have

A. the same amplitude.
B. slightly different amplitudes.
C. the same frequency.
D. slightly different frequencies.


参考答案:  D


本题详细解析: 暂无

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