(来学网)男,59岁。下颌8654321|124568缺失,下颌7|7近中舌侧倾斜。可摘局部义齿修复时,7|7上应选择放置的卡环是
  • A.
    (来学网)三臂卡环
  • B.
    (来学网)圈形卡环
  • C.
    (来学网)对半卡环
  • D.
    (来学网)联合卡环
  • E.
    (来学网)杆形卡环