Taxonomy meta-data is used to分类元数据用于:()?
(A)Specify roles, classify descriptions, guide and control指定角色,分类描述,引导和控制
(B)Help people find data items or group of data items.帮助人们查找数据项或数据项组。
(C)Enforce constraints upon the data对数据实施约束
(D)Help the blind lead the blind through the data mind-field.帮助盲人带领盲人通过数据思维领域。
(E)None没有人
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