选择基牙时，其倾斜度最大限度是 ( ) A.45° B.40° C.20° D.30° E.25°

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问题选择基牙时，其倾斜度最大限度是 ( )

选项 A.45°
B.40°
C.20°
D.30°
E.25°

答案D

解析

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