试题与答案

车外噪声测量时,声级计用的计权网络是() A.“A”计权 B.“B”计权 C.“C”

题型:单项选择题

题目:

车外噪声测量时,声级计用的计权网络是()

A.“A”计权

B.“B”计权

C.“C”计权

D.“D”计权

答案:

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