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  • 更新 2022-09-04
  • 科目 英语
  • 题型 选择题
  • 难度 中等
  • 浏览 64

The number of medical schools reached 18 in the early 1990s and ______ around that level ever since.(  )

A.

are remaining

B.

have remained

C.

is remaining

D.

has remained

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Thenumberofmedicalschoolsreach