Exploring the moon is a(n) _____ to China as well as the whole world.

A. opportunity
B. challenge
C. reaction
D. threat
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科目：高中英語 來源：山東省期末題 題型：單選題

Exploring the moon is a(n) _____ to China as well as the whole world.

[     ]

A. opportunity
B. challenge
C. reaction
D. threat

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科目：高中英語 來源： 題型：單選題

Exploring the moon is a(n)________ to China as well as the whole world．


  1. A.
    opportunity
  2. B.
    challenge
  3. C.
    reaction
  4. D.
    threat

查看答案和解析>>


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