According to Part 2: Achieve Sound Isolation at Walls of Feature S03: Sound Barr

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试卷: WELL AP v2模拟题 B卷[查看]
According to Part 2: Achieve Sound Isolation at Walls of Feature S03: Sound Barriers, what is the minimum Noise Isolation Class (NIC) or Weighted Difference Level (Dw) between rooms for concentration and other regularly occupied spaces?根据第 2 部分：在功能 S03：声屏障的墙壁上实现隔音，专注空间和其他经常占用的空间之间的最低噪音隔离等级 (NIC) 或加权差异级别 (Dw) 是多少？
A: 40
B: 45
C: 60
D: 55

参考答案: A