(来学网)活动矫治器基托厚度为
  • A.
    (来学网)1.0~1.5mm
  • B.
    (来学网)1.5~2.0mm
  • C.
    (来学网)2.0~2.5mm
  • D.
    (来学网)2.5~3.0mm
  • E.
    (来学网)3.0~3.5mm
正确答案:
C