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"Through 1840, simple enumeration by household mirrored a home-based agricultural economy and hierarchical social order: the head of the household (presumed male or absent) was specified by name, whereas(10) other household members were only indicated by the total number of persons counted in various categories, including occupational categories. " OG: Thus it is reasonable to infer that the 1840 census provide an overall count of people engaged in occupations, both farming and nonfarming. 谢谢liujiashh,更改了本篇第20题,答案是B,不是E。 |