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  3. The idea that some groups of people may be more intelligent than others is one of those hypotheses that dare not speak its name.

The idea that some groups of people may be more intelligent than others is one of those hypotheses that dare not speak its name.

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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【B1】______to say it anyway. He is that【B2】______bird, a scientist who works independently【B3】______any institution. He helped popularize the idea that some diseases not【B4】______thought to have a bacterial cause were actually infections, which aroused much controversy when it was first suggested.
    【B5】______he, however, might tremble at the【B6】______of what he is about to do. Together with another two scientists, he is publishing a paper which not only【B7】______that one group of humanity is more intelligent than the others, but explains the process that has brought this about. The group in【B8】______are a particular people originated from central Europe. The process is natural selection.
    This group generally do well in IQ test,【B9】______12-15 points above the【B10】______value of 100, and have contributed【B11】______to the intellectual and cultural life of the West, as the【B12】______of their elites, including several world-renowned scientists,【B13】______. They also suffer more often than most people from a number of nasty genetic diseases, such as breast cancer. These facts,【B14】______, have previously been thought unrelated. The former has been【B15】______to social effects, such as a strong tradition of【B16】______education. The latter was seen as a(n)【B17】______of genetic isolation. Dr. Cochran suggests that the intelligence and diseases are intimately【B18】______. His argument is that the unusual history of these people has【B19】______them to unique evolutionary pressures that have resulted in this【B20】______state of affairs.
【B20】
选项 A、paradoxical
B、incompatible
C、inevitable
D、continuous
答案A
解析 考查形容词辨析。本句意为“这些人不同寻常的历史致使他们承受了独特的进化压力，这些压力导致了这种______的状态”。结合上文可知，this state of affairs指的是前文中“一方面，这类人作出了杰出贡献；另一方面，他们更容易患上恶性疾病”，这是两种矛盾的状态，因此选A．paradoxical“自相矛盾的”。incompatible“不相容的，不能同时成立的”；inevitable“不可避免的”；continuous“连续的，持续的”；均不符合语境。
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