Finding a cure for this disease is one of the greatest ______ faced by scientists.选项:a、hardships b、conclusions c、achievements d、challenges

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Findingacureforthisdiseaseisoneofthegreatest______facedbyscientists.选项:a、hardshipsb、conclusionsc、ach

Finding a cure for this disease is one of the greatest ______ faced by scientists.选项:a、hardships b、conclusions c、achievements d、challenges
Finding a cure for this disease is one of the greatest ______ faced by scientists.
选项:
a、hardships
b、conclusions
c、achievements
d、challenges

Finding a cure for this disease is one of the greatest ______ faced by scientists.选项:a、hardships b、conclusions c、achievements d、challenges
d

C
finding是找到了，用ing形式只是因为是从句做主语，找到了就是成就，如果选D,那么finding应用looking for寻找，未找到才是一个挑战

根据faced可知选D
face challenge 固定搭配面临。。。的挑战
hardship不可与greatest搭配 A错误
conclusion不可与face搭配同时不符合句意 B错误
achievement不可与face搭配 D错误
全句可译为：为这种疾病寻找治疗方法是科学家们面临的最重大的挑战之一。
另外 looking for描述...

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