Physics Unit12: Sound (id: fe91a7609)

本题目来源于试卷: Physics Unit12: Sound，类别为 国际高中通用物理

[单选题]
The intensity level is 65 dB ahm7j;)w6bt rs8rbi*a4gv5 b jt4le r.t a distc ud/g xlv0/*oance 5.00 m from a barking dog. What would be the intensity level if ldc/v u0xg */otwo identical dogs very close to each other are barking?

A. $65 \; dB$
B. $68 \; dB$
C. $130 \; dB$
D. $136 \; dB$


参考答案:  B


本题详细解析: 暂无

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