问题
单项选择题
强度为80dB的噪声，其相应的声压为（）。
A.0.1Pa
B.0.2Pa
C.0.4Pa
D.20Pa
答案
参考答案：B
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强度为80dB的噪声，其相应的声压为（）。
A.0.1Pa
B.0.2Pa
C.0.4Pa
D.20Pa
参考答案：B
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