How universe came into being is a puzzle to scientists 闂佺偨鍎婚懙褰掑焵椤掑﹥瀚�查看更多

 

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How ______ universe came into being is a puzzle to ______ scientists of all generations.

A. the; 不填    B. an; the    C. a; 不填    C. 不填;the

 

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How ______ universe came into being is a puzzle to ______ scientists of all generations.

   A. the; 不填    B. an; the    C. a; 不填    C. 不填;the

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How ______ universe came into being is a puzzle to ______ scientists of all generations.
A. the; 不填    B. an; the    C. a; 不填    C. 不填;the

查看答案和解析>>

 How ______ universe came into being is a puzzle to ______ scientists of all generations.

   A. the; 不填    B. an; the    C. a; 不填    C. 不填;the

 

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