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  • 更新 2022-09-03
  • 科目 英语
  • 题型 单选题
  • 难度 中等
  • 浏览 253

To reach Africa, we flew      high mountains,      deep valleys and    
great deserts(沙漠).

A.on, across, though B.over, through, through
C.over, through, across D.on, in, across
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ToreachAfrica,weflewhighmounta