Physics Unit12: Sound (id: 86cb35a82)

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

[单选题]
What is the ratio of the intensitiea1 pddy k5fy re q 0s:c.6ja:f+ut51hps of two sounds with intensity lev. rku rhks4+.uv 9u z)ahud7b1els of 70 dB a zu. dh.1v )7bs49uuh+karukrnd 40 dB?

A. 10:1
B. 100:1
C. 1000:1
D. 10,000:1


参考答案:  C


本题详细解析: 暂无

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