(来学网)用于观察肌肉收缩时动作电位的示波器扫描速度为
  • A.
    (来学网)5MS/CM
  • B.
    (来学网)50MS/CM
  • C.
    (来学网)10MS/CM
  • D.
    (来学网)100MS/CM
  • E.
    (来学网)1000MS/CM