20岁的正常成年人下颌角角度范围一般为A.100°~110° B.120°~130° C.130°~140° D.140°~150° E.150°~160°

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问题 20岁的正常成年人下颌角角度范围一般为

选项 A.100°~110°
B.120°~130°
C.130°~140°
D.140°~150°
E.150°~160°

答案B

解析正常成年人下颌角角度为125°,其范围在120°~130°。
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