2. 外语
  3. What do both theories assume to be true? We see distant galaxies as they were long, long ago because ______.

What do both theories assume to be true? We see distant galaxies as they were long, long ago because ______.

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问题 What do both theories assume to be true?
We see distant galaxies as they were long, long ago because ______.
选项 A、they were closer together then
B、the universe has always looked as the same
C、their light takes so long to reach us
D、they have travelled such a long way
答案C
解析 由短文第四段中的Since the very distant galaxies are thousands of millions of light years away, then we are seeing them as they were thousands of millions of years ago可知答案。
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