解剖式人工牙的牙尖斜度是A.20° B.30° C.10° D.40°

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问题 解剖式人工牙的牙尖斜度是A.20°B.30°C.10°D.40°E.50°

选项 A.20°
B.30°
C.10°
D.40°
E.50°

答案 B

解析
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