(来学网)正常牙周膜厚度为
  • A.
    (来学网)0.15~0.38mm
  • B.
    (来学网)1mm
  • C.
    (来学网)2mm
  • D.
    (来学网)6mm
  • E.
    (来学网)4mm
正确答案:
A
口腔组织病理