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  3. The Case of the Disappearing Fingerprints One useful anti-cancer drug can effectively erase the whorls(萝状指纹)and other charact

The Case of the Disappearing Fingerprints One useful anti-cancer drug can effectively erase the whorls(萝状指纹)and other charact

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问题                  The Case of the Disappearing Fingerprints
   One useful anti-cancer drug can effectively erase the whorls(萝状指纹)and other characteristic marks that give people their distinctive fingerprints．Losing them could become troublesome．A case【51】______online in a letter by Annals of Oncology indicates how big a【52】______losing finger prints is．
   Eng-Huat Tan，a Singapore-based medical doctor describes a 62-year-old man who has used capecitabine(卡培他滨)to【53】______his nasopharyngeal cancer(鼻咽症)．After three years on the【54】______，the patient decided to visit his U．S．relatives last December．But he was stopped by U．S． customs officials【55】______4 hours after entering the country when those officials couldn’t get finger prints from the man．There were no【56】______swirly(旋涡状的)marks appearing from his index fin ger．
   U．S．customs has been fingerprinting incoming foreign visitors for years，Tan says．Unfortunately， for the Singaporean traveler，one potential【57】______effect of his drug treatment is a smoothing of the tissue on the finger pads．【58】______，no fingerprints．
  “It is uncertain when fingerprint【59】______will begin to take place in patients who are taking capecitabine，”Tan points out．So he【60】______any physicians who prescribe the drug to provide their patients with a doctor’s【61】______pointing Out that their medicine may cause fingerprints to disappear．
   Eventually，the Singaporean traveler made it into the United States．But he’s also now got the explanatory doctor’s note-and won’t leave home【62】______it．
   By the way，maybe the Food and Drug Administration，【63】______approved use of the drug 11 years ago，should consider updating its list of side effects【64】______with this medicine．The current list does note that patients may experience vomiting(呕吐)，stomach pain and some other side effects． But no where【65】______it mention the potential for loss of fingerprints．
选项 A、in
B、for
C、at
D、from
答案B
解析 本句意思是：但是他一进入美国就因为工作人员采集不到指纹而被海关工作人员盘问了长达四个小时，故选B。
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