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  • 更新 2022-09-03
  • 科目 英语
  • 题型 单选题
  • 难度 中等
  • 浏览 2011

The lecture was going well until the projector(幻灯机) ______ and put the professor off his stride.

A.broke down B.broke up C.broke away D.broke off
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Thelecturewasgoingwelluntilthe