题目内容
1. It is very obvious that the universe began with . (what)
很明显,宇宙起源于一次所谓的"大爆炸"。
1.what is called "Big Bang"
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题目内容
1. It is very obvious that the universe began with . (what)
很明显,宇宙起源于一次所谓的"大爆炸"。
1.what is called "Big Bang"