Physics Unit12: Sound (id: 737c6b977)

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 7 01d6zq:yji vzgb;xaby qggpqczfx3q7 7fu4 bgl9 04d315 engines in a garage is 100 dB. What is the intensity level generated by one engine 90u4 3 d7qcgbp7qf3ggf lqzx4?

A. $67 \; dB$
B. $13 \; dB$
C. $44 \; dB$
D. $88 \; dB$


参考答案:  D


本题详细解析: 暂无

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