... 商业 commerce 商业普查 commercial census 商业统计 commercial statistics ...
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·2,447,543篇论文数据，部分数据来源于NoteExpress
Hundreds of data points on each of over 250 million registered voters are gleaned from both publicly available and purchased sources such as social graphs, census data, tax records, and commercial data.
FORBES: Targeted Marketing: Good for Elections, Bad for Government
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