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  • 科目:英语
  • 题型:单选题
  • 难度:较易
  • 人气:1902

Much of the criticism has focused on the railway’s online purchasing system,which has been
unable to _________ the huge demand.

A.take notice of B.attach importance to
C.show preference for D.keep pace with
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Muchofthecriticismhasfocusedon