1991 - Apartheid: the South African Parliament repeals the Population Registration Act, which had required all racial classification of all South Africans at birth.
1991年，种族隔离。南非国会取消人口注册法案，这项法案要求所有南非人在出生时要进行种族分级。
First, the Court required especially strict scrutiny of legislation that employed a "suspect classification", meaning discrimination against a group on grounds that could be construed as racial.
首先，最高法院要求对采用“可疑分类”的立法进行特别严格的审查。“可疑分类”指的是以种族歧视为理由对一个群体的歧视。
Yet the racial categories laid down under apartheid are still widely used, the only difference being that people now choose their own classification rather than having it foisted on them.
种族隔离时期产生的种族分类至今仍大行其道，唯一的不同只在于人们不再被强制分类而是可以选择自己所属的阶层。
This paper illustrated the characters about root canal morphology of mandibular premolars, including the formation, configurations, racial difference, classification and methods for study.
本文简要介绍下颌前磨牙多种解剖结构的形成、形态特点、人种差异、分型和研究方法。
This paper illustrated the characters about root canal morphology of mandibular premolars, including the formation, configurations, racial difference, classification and methods for study.
本文简要介绍下颌前磨牙多种解剖结构的形成、形态特点、人种差异、分型和研究方法。
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