单选题:下列关于统计标准化的表述中正确的是( )。

题目内容:
下列关于统计标准化的表述中正确的是( )。 A.标准是对重复性事物和概念所做的统一规定
B.统计分类标准必须以国家标准的形式发布
C.统计标准应经常更新,以适应情况不断变化的需要
D.统计分类标准主要应用于数据采集阶段
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答案解析:

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