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According to the discoveries of the astronomers, when did galaxies form? [br] Th
According to the discoveries of the astronomers, when did galaxies form? [br] Th
游客
2023-09-15
51
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问题
According to the discoveries of the astronomers, when did galaxies form? [br] The comparative rarity of IOK-1 means that significant changes must have occurred in the universe over the 60 million years that ______.
选项
答案
separate the two epochs
解析
根据题干中的关键词comparative rarity和60 million years定位到倒数第六段,可知诸如IOK-1之类物体相对的稀有性表明,。在分割两个时代的六千万年间,宇宙一定有了重要的改变。
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