(来学网)烤瓷熔附金属全冠的基底冠厚度至少为
  • A.
    (来学网)0.1mm
  • B.
    (来学网)0.3mm
  • C.
    (来学网)0.5mm
  • D.
    (来学网)1mm
  • E.
    (来学网)2mm
正确答案:
B