(来学网)正常成人腰椎侧隐窝前后径是 ( )
  • A.
    (来学网)>2mm
  • B.
    (来学网)>3mm
  • C.
    (来学网)>4mm
  • D.
    (来学网)>5mm
  • E.
    (来学网)>6mm