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IV.阅读理解。认真阅读下面两篇短文,每篇短文后各有五个问题,根据短文的内容从A、B、c、D四个选项中,选择一个正确答案。(本大题共10小题,每小题1分,共10分)Read the two passages and answer the questions. (10 points)Passage oneThe advantages and disadvantages of a large population has long been a subject of discussion