单选题:As it is mentioned in the 4th paragraph, gaps have grown dra

  • 题目分类:英语(二)
  • 题目类型:单选题
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题目内容:
As it is mentioned in the 4th paragraph, gaps have grown dramatically between. (  ) A.the students and the slow ones
B.the advanced countries and the others
C.the selective institutions and the rest
D.the rich families and the poor ones

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