gc textbook chapter 12 Sound (id: 3cbc98a67)

本题目来源于试卷: gc textbook chapter 12 Sound，类别为 通用国际物理

[填空题]
What is the resultant s.2bb1u af5d-tiw qkss 9.psg;oundx(ys1tnl,uj:- xi :vz level when an 82-dB sound and an 87-dB sound are heard simu , s-n v1xj(ztliu:x:yltaneously?    dB

参考答案: 88±2%


本题详细解析:

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