患者,男,(来学网)缺失,可摘局部义齿修复,基牙,采用弯制卡环,塑料基托连接,基牙舌向、近中倾斜,宜采用下列哪类卡环
  • A.
    (来学网)正型卡环
  • B.
    (来学网)双臂卡环
  • C.
    (来学网)上返卡环
  • D.
    (来学网)单臂卡环
  • E.
    (来学网)环形卡环