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【单选题】
普查是一种全面调查的方法,与抽样调查相比,叙述正确的是A.
确定普查观察单位非常简单
B.
普查省钱
C.
普查不易获得反映平均水平的统计指标
D.
因涉及面广普查可产生较大的抽样误差
E.
普查更易统一调查技术,提高调查质量
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