(来学网)排牙实验锯开模型时,应从
  • A.
    (来学网)牙颈缘线2~3mm处的连线锯开
  • B.
    (来学网)牙颈缘线3~4mm处的连线锯开
  • C.
    (来学网)牙颈缘线1~2mm处的连线锯开
  • D.
    (来学网)牙颈缘线4~5mm处的连线锯开
  • E.
    (来学网)牙颈缘线5~6mm处的连线锯开
正确答案:
A