题目内容
一般说来卡环肩部分应放在基牙的何处
2021-11-10
A.基牙中1/3处的非倒凹区
B.基牙中1/3处的倒凹区
C.基牙颈1/3处的倒凹区
D.基牙颈1/3处的非倒凹区
E.拾方咬合面处
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