(来学网)当单层螺旋扫描螺距等于2时,床速与射线束宽度的比值应该是(床速/射线束宽度)
  • A.
    (来学网)10/10mm
  • B.
    (来学网)10/5mm
  • C.
    (来学网)10/2mm
  • D.
    (来学网)20/15mm
  • E.
    (来学网)5/5mm