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69 一個 60 phons、1,000 Hz 的純音,相當於多少 sones?(A) 1 sone (B) 2 sones (C) 4 sones (D) 20 sones
問題詳情
69 一個 60 phons、1,000 Hz 的純音,相當於多少 sones?
(A) 1 sone
(B) 2 sones
(C) 4 sones
(D) 20 sones
參考答案
答案:C
難度:適中0.5
統計:A(1),B(2),C(6),D(2),E(0)
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