(来学网)隐形义齿卡环的厚度为
  • A.
    (来学网)0.5~0.8mm
  • B.
    (来学网)0.8~1.0mm
  • C.
    (来学网)1.0~1.5mm
  • D.
    (来学网)1.5~2.0mm
  • E.
    (来学网)2.0~2.5mm