The universe has more than 100 billion separate systems of stars and gas known as _____.

单选题

The universe has more than 100 billion separate systems of stars and gas known as _____.

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单选题

There exists the eternal struggle between good and （) forces in the moral universe.

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材料题

atter dominated the structure_______(10)in the early universe, Steinhardt said.For the first few billion years dark matter contained most of the mass of the universe. You can think of ordinary matter_______(11)a froth（泡沫）of an ocean of dark matter. The dark matter clumps（结成块）and the ordinary matter falls into it. That_______(12) to the formation of the stars and galaxies（星系）.Without dark matter,there would be virtually no structures in the universe,The nature of dark matter is_______(13).It can

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问答题

将字符串 to put a dent in the universe. 连接在 We re here 之后

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单选题

____of the twins has passed the examination.

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