The idea that some groups of people may be more intelligent than others is o

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问题 The idea that some groups of people may be more intelligent than others is one of those hypotheses that dare not speak its name. But Gregory Cochran is【C1】______to say it anyway. He is that【C2】______bird, a scientist who works independently【C3】______any institution. He helped popularize the idea that some diseases not【C4】______thought to have a bacterial cause were actually infections, which aroused much controversy when it was first suggested.
【C5】______he, however, might tremble at the【C6】______of what he is about to do. Together with another two scientists, he is publishing a paper which not only【C7】______that one group of humanity is more intelligent than the others, but explains the process that has brought this about. The group in【C8】______is a particular people originated from central Europe. The process is natural selection.
This group generally does well in IQ test, 【C9】______12-15 points above the【C10】______value of 100, and have contributed【C11】______to the intellectual and cultural life of the West, as the【C12】______of their elites, including several world-renowned scientists, 【C13】______They also suffer more often than most people from a number of nasty genetic diseases, such as breast cancer. These facts, 【C14】______, have previously been thought unrelated. The former has been【C15】______to social effects, such as a strong tradition of【C16】______education. The latter was seen as a(an) 【C17】______of genetic isolation. Dr. Cochran suggests that the intelligence and diseases are intimately【C18】______. His argument is that the unusual history of these people has【C19】______them to unique evolutionary pressures that have resulted in this【C20】______state of affairs. [br] 【C19】

选项 A、limited
B、subjected
C、converted
D、directed

答案 B

解析本题考查固定搭配。本题目选择动词，在句子中构成固定搭配，充当谓语。Hisargument is that the unusual history of these people has them to unique evolutionary pressures“他的观点是，这些人非同寻常的经历使其更容易遭受独特的进化压力”。选项A．limited to局限于，限制(只能构成be limited to短语)，被限制在……；B．subjected to使遭受(经受，屈服)subject…to…使……屈服于……；C．convened to转变为，改变；D．directed to指向，导向。故选B。

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