决定牙齿形状的是A．成釉器B．牙乳头C．牙囊D．成釉细胞E．星网状层细胞

作者: rantiku 人气: - 评论: 0

问题决定牙齿形状的是

选项 A．成釉器 B．牙乳头 C．牙囊 D．成釉细胞 E．星网状层细胞

答案 B

解析

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