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  • 更新 2022-09-03
  • 科目 英语
  • 题型 单选题
  • 难度 中等
  • 浏览 1790

  China supplies more than 90 percent of the world’s rare earth metals, but its reserves only ________ about one-third of the world’s total.

A.take up B.make up
C.build up D.set up
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Chinasuppliesmorethan90percent