问题
选择题
-How amazing it is that astronauts are exploring outer space!
-It's a challenge, I guess, _____ man against nature.[ ]
A. of
B. for
C. by
D. about
答案
答案：A
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-How amazing it is that astronauts are exploring outer space!
-It's a challenge, I guess, _____ man against nature.[ ]
A. of
B. for
C. by
D. about
答案：A