64.下圖中箭號所指的區域代表: (A)回音增強(acoustic enhancement) (B)音影(acoustic shadows) (C)餘音假影(ring-down artifacts) (D)體內異物(foreign body)
回音增強會變亮 音影會變暗所以不選AB
然後看起來沒異物所以不選D
64.下圖中箭號所指的區域代表: (A)回音增強(acoustic enhan..-阿摩線上測驗