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  • 科目:英语
  • 题型:单选题
  • 难度:中等
  • 人气:1614

It was       problem that       of the students could work it out.

A.so hard a ; a few B.such a hard ; few
C.such hard a ; few D.so a hard ; a few
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Itwasproblemthatofthestudentsc