2. 外语
  3. It can be inferred from the first paragraph that long time ago many people did not know the sky is ______. Scientists can see f

It can be inferred from the first paragraph that long time ago many people did not know the sky is ______. Scientists can see f

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问题 It can be inferred from the first paragraph that long time ago many people did not know the sky is ______.
Scientists can see farther out into space with the help of ______.
选项 A、the light from space
B、the stars in space
C、some new and larger telescopes
D、the clear background
答案C
解析
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