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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。 第六部分：完形填空(第51-65题，每题1分，共15分) 阅读下面的短文，文中有15处空白，每处空白给出了4个选项，请根据短文的内容从4个选项中选择1个最佳答案，涂在答题卡相应的位置上。 The Case of the Disappearing Fingerprints One useful anti-cancer drug can effectively erase the whorls and other characteristic marks thatgive people their distinctive fingerprints(指纹)．Losing them could become troublesome．A case___________(51)online in a letter by Annals of Oncology(肿瘤学)indicates how big a_______ (52)of losing fingerprints is． Eng-Huat Tan．a Singapore-based medical doctor describes a 62-year old man who has usedcapecitabine to_________(53)his nasopharyngeal cancer(鼻咽癌)．After three years on the (54)，the patient decided to visit U．S．relatives last December．But he was stopped byU．S．customs officials__________(55)4 hours after entering the country when those officialscouldnt get fingerprints from the man．There were no___________(56)swirly marks appearing fromhis index finger． | 
