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Though not biologically related,friends
Though not biologically related,friends
练习题库
2022-08-02
46
问题
Though not biologically related,friends are as“related”as fourth cousins,sharing about 1%of genes.That is_(1)_a study,published from the University of California and Yale University in the Proceedings of the National Academy of Sciences,has__(2)_.The study is a genome-wide analysis conducted_(3)__1,932 unique subjects which__(4)__pairs of unrelated friends and unrelated strangers.The same people were used in both_(5)_.While 1%may seem_(6)_,it is not so to a geneticist.As James Fowler,professor of medical genetics at UC San Diego,says,“Most people do not even_(7)_their fourth cousins but somehow manage to select as friends the people who_(8)_our kin.”The study_(9)_found that the genes for smell were something shared in friends but not genes for immunity.Why this similarity exists in smell genes is difficult to explain,for now,_(10)_,as the team suggests,it draws us to similar environments but there is more_(11)_it.There could be many mechanisms working together that_(12)_us in choosing genetically similar friends_(13)_”functional Kinship”of being friends with_(14)_!One of the remarkable findings of the study was the similar genes seem to be evolution_(15)_than other genes Studying this could help_(16)_why human evolution picked pace in the last 30,000 years,with social environment being a major_(17)_factor.The findings do not simply explain people’s_(18)_to befriend those of similar_(19)_backgrounds,say the researchers.Though all the subjects were drawn from a population of European extraction,care was taken to_(20)_that all subjects,friends and strangers,were taken from the same population.2选?A.defendedB.concludedC.withdrawnD.advised
选项
A.defended
B.concluded
C.withdrawn
D.advised
答案
B
解析
B【考点】上下文语义衔接+动词辨析从此题所在句子的前后内容可以判断出,that is_______中的that是指第一句话的内容(朋友与我们基因上的相关性),很显然是研究得出的结论。因此,答案为concluded。
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本试题收录于:
英语一研究生题库研究生入学分类
英语一研究生
研究生入学
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