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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6部分：完形填空(第51～65题，每题1分，共15分) 下面的短文有15处空白，请根据短文内容为每处空白确定1个最佳选项。 Friends May Be Key to Living Longer Looking for the secret of a long life? Look closely at your friends. New research suggests that having a strong network of friends helps people live longer. Older people with better social networks of friends were less likely to (51) over a 10-year follow-up (随访) period than older people with (52) friends networks, Lynne C. Giles of Flinders University in Australia told Reuters Health. But in what may come as a surprising finding to older people (53) rely on their children and other relatives, having a large network of relatives was not associated with longer life, according (54) Giles and her colleagues. Of course, that is not to say that social networks (55) children and other relatives are not important in many other ways, Giles said. | 
