M型超声心动图主动脉瓣开放幅度,正常成人应大于
(来学网)
  • A.
    (来学网)13mm
  • B.
    (来学网)25mm
  • C.
    (来学网)18mm
  • D.
    (来学网)20mm
  • E.
    (来学网)16mm