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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。 Influenza(流感) Influenza has been with us a long time. According to some Greek writers 51 medical history, the outbreak of 412 B.C. was of influenza. The same has been suggested of the sickness 52 swept through the Greek army attacking Syracuse in 395 B.C. Influenza is a disease that moves most quickly among people living in 53 conditions, hence, it is likely to attack armies. 54 the nineteenth century there were five widespread outbreaks of influenza. The last of the five 55 in 1889 and marked the beginning of the story of influenza in our time. 56 the recent outbreak, it started in Asia. For more than forty years before that outbreak, influenza had steadily __57__ and was believed to be dying out. A new group of outbreaks was 58 by the great outbreak of 1889-1890 and for the next quarter of a century influenza remains a constant threat. | 
