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【单选题】
从所要研究的某特定现象之总体中，依随机原理抽取一部分作为样本，根据对样本的研究结果，在抽样置信水平上，推断总体特性的调查方法是 ( )
A.
重点调查
B.
市场普查
C.
抽样调查
D.
典型调查
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