单项选择题
弯制钢丝卡臂进入基牙倒凹的深度为()
A.>1.0mm
B.0.75~1.0mm
C.0.5~0.75mm
D.0.25~0.5mm
E.<0.25mm
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单项选择题
A.>1.0mm
B.0.75~1.0mm
C.0.5~0.75mm
D.0.25~0.5mm
E.<0.25mm
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