题目内容
Exploring the moon is a(n) _____ to China as well as the whole world. |
A. opportunity B. challenge C. reaction D. threat |
试题答案
B
相关题目
题目内容
Exploring the moon is a(n) _____ to China as well as the whole world. |
A. opportunity B. challenge C. reaction D. threat |
试题答案
B