One useful anti-cancer drug can
effectively erase the whorls (螺纹) and other characteristic marks that give
people their distinctive fingerprints. Losing {{U}} {{U}} 1
{{/U}} {{/U}}could become troublesome. A case released online in a letter by
Annals of Oncology indicates how big a {{U}} {{U}} 2 {{/U}}
{{/U}}of losing fingerprints is. Eng-HuatTan, a Singapore-based
medical doctor describes a 62-year-old man who has used capecitabine to
{{U}} {{U}} 3 {{/U}} {{/U}}his nasopharyngeal cancer. After
three years on the {{U}} {{U}} 4 {{/U}} {{/U}}, the patient
decided to visit U.S. relatives last December. But he was stopped by U.S.
Customs officials {{U}} {{U}} 5 {{/U}} {{/U}}4 hours after
entering the country when those officials couldn't get fingerprints from the
man. There were no distinctive swirly {{U}} {{U}} 6 {{/U}}
{{/U}}appearing from his index finger. U.S. Customs has been
fingerprinting incoming foreign visitors for years, Tan says. Their index
fingers are {{U}} {{U}} 7 {{/U}} {{/U}}and screened against
digital files of the fingerprints of bad guys—terrorists and potential criminals
that our federal guardians have been tasked with keeping out of the country.
Unfortunately, for the Singaporean traveler, one potential {{U}} {{U}}
8 {{/U}} {{/U}}effect of his drug treatment is a smoothing of the tissue
on the finger pads. {{U}} {{U}} 9 {{/U}} {{/U}}, no
fingerprints. "It is uncertain when fingerprint loss will
{{U}} {{U}} 10 {{/U}} {{/U}}to take place in patients who are
taking capecitabine," Tan points out. So he cautions any physicians who
{{U}} {{U}} 11 {{/U}} {{/U}}the drug to provide their patients
with a doctor's note pointing out that their medicine may cause fingerprints to
disappear. Eventually, the Singapore traveler made it into the
United States. I guess the name on his passport didn't raise any red flags. But
he's also now got the explanatory doctor's note—and won't leave home {{U}}
{{U}} 12 {{/U}} {{/U}}it. By the way, maybe the
Food and Drug Administration, {{U}} {{U}} 13 {{/U}}
{{/U}}approved use of the drug 11 years ago, should consider {{U}} {{U}}
14 {{/U}} {{/U}}its list of side effects associated with this medicine.
The current list does note that patients may experience vomiting, stomach pain
and some other side effects. But no where {{U}} {{U}} 15
{{/U}} {{/U}}it mention the potential for loss of fingerprints.
【答案解析】[解析] 从上下文判断，“after three years on the...(经过三年的……)”的后面应该接“用药”或“治疗”等内容，所以选C项drug是正确的。选A项recovery(康复)，B项diet(节食)或D项diagnosis(诊断)都与后面提到的病人进入美国受阻的事件接不上，故选C。
【答案解析】[解析] 哪一个政府机构许可(approved)使用该类抗癌药?就是本段第一句提到的“the Food and Drug Administration”。四个选项中，只有关系代词which能指代“the Food and Drug Administration”，它是approved动作的发出者，故选D。
【答案解析】[解析] 最后一段最后一句中，为了强调no where，将它移到句首，这时，原句的“it does not mention the potential for loss of fingerprints”就要写成倒装句形式的“no where does it mention the potential for loss of fingerprints”，故选B。