(来学网)音频的频率范围是
  • A.
    (来学网)20~2000HZ
  • B.
    (来学网)27~2000HZ
  • C.
    (来学网)2000~4000HZ
  • D.
    (来学网)27~10000HZ
  • E.
    (来学网)27~20000HZ
正确答案:
C