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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 for ever.
D、about 20,000 million years ago.
答案B
解析 由第—段中的"This primeval atom exploded for…at which time the galaxies formed"可知答案。
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