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  • 更新 2022-09-03
  • 科目 英语
  • 题型 单选题
  • 难度 中等
  • 浏览 1256

It was not until the subprime loan crisis(次贷危机) ____ great damage to the American financial system that Americans ____ the severity of the situation.

A.caused, realized B.had caused, realized
C.caused, had realized D.was causing, had realized
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Itwasnotuntilthesubprimeloancr