本题目来源于试卷: Physics Unit12: Sound，类别为 通用国际物理
[单选题]
The intensity level is 65 dB aw6)cqruq l(yyoff :*u .g ):b2dc7lf.9s tgt h2cav;ig du9fuz x8c. vx pu-o;81- fqft a distance 5.00 m from a barking dog. What would be the intensity level if two identical dogs very close to exofp i9;gua8 8-c-z 2fxvuu;f1. cqdvach 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:
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