2. 外语
  3. What do both theories assume to be true? According to Lemaitre, the separate galaxies formed ______.

What do both theories assume to be true? According to Lemaitre, the separate galaxies formed ______.

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问题 What do both theories assume to be true?
According to Lemaitre, the separate galaxies formed ______.
选项 A、during a pause in the expansion of the universe
B、at the time of the primeval explosion
C、and will continue to form forever
D、about 20,000 million years ago
答案B
解析 由第一段中的This primeval atom exploded for...at which time the galaxies formed可知答案。
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