retail and wholesale trade
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本文以全国基本单位普查资料为依托，对规模以下批发和零售贸易业抽样调查的抽样框进行设计，设计的思路和方法对其他小企业的抽样调查也具有一定的参考价值。
According to the date of basic units census, this paper designs the sampling frame about the sampling survey of enterprises below designated size in wholesale and retail sale trades.
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