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导语：以下英语网为大家整理了全面的职称英语考试历年真题及答案解析，《职称英语考试试题汇总：历年真题及答案解析》供大家参考学习。更多职称英语考试试题敬请关注英语网！ 【推荐】关注英语网微信：yingyuwang2013，更快获取真题答案及成绩查询信息。 第4部分：阅读理解(第31～45题，每题3分，45分) 下面有3篇短文,每篇短文后有5道题。请根据短文内容,为每题确定1个最佳选项。 第一篇 U. S. Life Expectancy Hite New High Life expectancy rates in the United States are al an alltime high, with people born in 2005 projected to live for nearly 78 years, a new federal study finds. The finding reflects a continuing trend of increasing life expectancy that began in l955, when the average American lived to be 69.6 years old. By l995, lire expectancy was 75.8 years and by 2006, it had risen to 77. 9 years, according to the report released Wednesday. This is good news, said report co-author Donna Hoyert, a health scientist at the national Center for Health Statistics. Its even better news that it is a continuation of trends, so it is a long period of continuing improvement. Despite the upward trend, the United States still has lower lire expectancy than some 40 other countries, according to the U. S. Census (人口普查) Bureau. The country with the longest lire expectancy is Andorra at 83.5 years, followed by Japan, Macau, San Marino and Singapore. | 
