[填空题]
Your auditory system can accommodate au3u6y w.cu)a f huge range of sou 8,yoo(amf i9wnd levels. What is the ratio of hi ,ofo(8a9ywi mghest to lowest intensity at
(a) 100 Hz,$ \times10^{ a }$ a =
(b) 5000 Hz? $ \times10^{ a }$ a =
(See Fig. 12–6.)
