现有企业生产车间噪声容许标准可放宽至(  )A.80Db(A) B.85Db(A) C.90Db(A) D.100Db(A) E.115Db(A)

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问题 现有企业生产车间噪声容许标准可放宽至(  )

选项 A.80Db(A)
B.85Db(A)
C.90Db(A)
D.100Db(A)
E.115Db(A)

答案C

解析
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