硕士研究生入学统一考试英语试题(一)

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e 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 1 to say it anyway. he is that 2 bird, a scientist who works independently 3 any institution. he helped popularize the idea that some diseases not 4 thought to have a bacterial cause were actually infections, which aroused much controversy when it was first suggested. 5 he, however, might tremble at the 6 of what he is about to do. together with another two scientists, he is publishing a paper which not only 7 that one group of humanity is more intelligent than the others, but explains the process that has brought this about. the group in 8 are a particular people originated from central europe. the process is natural selection. this grou硕士研究生入学统一考试英语试题(一)

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