问题
选择题
It___________Yang Liwei about 21 hours the Earth 14 times spaceship [ ]
A. spent; traveling
B. took; traveling
C. spent; to travel
D. took; to circle
答案
答案：D
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It___________Yang Liwei about 21 hours the Earth 14 times spaceship [ ]
A. spent; traveling
B. took; traveling
C. spent; to travel
D. took; to circle
答案：D