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  • 更新 2022-09-03
  • 科目 英语
  • 题型 单选题
  • 难度 中等
  • 浏览 1276

Astronomers and scientists think that a black hole is a region of space ______ which matter has fallen and _______ which nothing can escape.

A.into; from B.towards; towards
C.out of; from D.through; through
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Astronomersandscientiststhinkt