单项选择题 These so-called facts are the product of considerable______in the analysis and exposition of statistical data, a sly attempt at giving the conclusions______credibility.

单项选择题 In spite of the______frequently observed in honeybee colonies, individual honeybees are characterized by______to a surprising extent.

单项选择题 In contemporary usage, continents are understood to be large, continuous, ______ masses of land, for they are almost always separated by expanses of water.