以下哪个因素对力无影响A.性别 B.牙体数量 C.习惯与训练 D.力线方向 E.开口距离

作者: tihaiku 人气: - 评论: 0

问题以下哪个因素对力无影响

选项 A.性别 B.牙体数量 C.习惯与训练 D.力线方向 E.开口距离

答案 B

解析

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