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2015考研英语真题答案解析 英语一 真题|答案 阅读 作文 完型 翻译 英语二 真题|答案 阅读 作文 完型 翻译 历年真题 点评 热点 辅导 更多
Directions:
Read the following text. Choose the best word(s)for each numbered blank and mark A,B,C or D on ANSWER SHEET.(10 points)
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 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 8 our kin.
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