2. 外语
  3. Few mathematicians are ______ their futures on finding any such proof; instead, their efforts are focused on finding good, but n

Few mathematicians are ______ their futures on finding any such proof; instead, their efforts are focused on finding good, but n

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问题 Few mathematicians are ______ their futures on finding any such proof; instead, their efforts are focused on finding good, but not ______ , solutions for most cases, a field of study aptly known as approximation theory.
选项 A、betting … perfect
B、developing … convenient
C、pinning … substandard
D、destroying … exact
E、establishing … vague
答案A
解析
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