下颌联冠式斜面导板,其斜面应与上切牙长轴呈多大角度A.45° B.50° C.60° D.30° E.70°

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问题 下颌联冠式斜面导板,其斜面应与上切牙长轴呈多大角度

选项 A.45°
B.50°
C.60°
D.30°
E.70°

答案A

解析
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