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1·Renaissance artists in particular enjoyed portraying the wise men with different racial characteristics: one European, one vaguely Asiatic magus and always a black African.

文艺复兴时期的艺术家们尤其喜欢以不同的种族特征来描绘这三位智者：一个欧洲人，一个似乎是亚洲智者，另一个则总是非洲黑人。

2·Renaissance artists in particular enjoyed portraying the wise men with different racial characteristics: one European, one vaguely Asiatic magus and always a black African.

文艺复兴时期的艺术家们尤其喜欢以不同的种族特征来描绘这三位智者：一个欧洲人，一个似乎是亚洲智者，另一个则总是非洲黑人。

3·Conclusion There are 2 gingival morphological types of maxillary anterior tooth segment in Han Chinese. There is racial difference on gingival morphological characteristics.

结论：在中国汉族人群中上前牙牙龈形态有2种类型，牙龈形态特征存在种族差异。