(来学网)医用超短波电流的频率为
  • A.
    (来学网)13.56MHz
  • B.
    (来学网)24.50MHz
  • C.
    (来学网)27.12MHz
  • D.
    (来学网)40.68MHz
  • E.
    (来学网)433.92MHz
正确答案:
D