A.6
B.24
C.
D.
[单选题]A.两牙邻面均有充填体B.银汞充填物悬突C.冠的颊面凸度过大D.正畸矫治器边缘达龈下E.基牙的咬合负担过大
[单选题]A.0.5B.0C.-1D.-2
[单选题]A.xB.yC.zD.