Exploring the moon is a(n) _____ to China as well as the whole world. [ ]A. opportunity B. challenge

题目简介

Exploring the moon is a(n) _____ to China as well as the whole world. [ ]A. opportunity B. challenge

题目详情

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

[     ]

A. opportunity
B. challenge
C. reaction
D. threat
题型:单选题难度:偏易来源:山东省期末题

答案

B

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