Physics Unit12: Sound (id: 737c6b977)

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 by 15 ;c 4tcfsvrl;rdpzl36e j:91hengines in a jk)n nso0f-*p 7et4ncpp*c+ agarage is 100 dB. What is the intensity level generated b* e7+ppac- 4onfctk)n0n* psjy one engine?

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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