问题
选择题
Yang Liwei ______ about twenty-one hours in ______ around the earth fourteen times. [ ]
A. took; going
B. spent; going
C. cost; to go
D. took; to go
答案
答案：B
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Yang Liwei ______ about twenty-one hours in ______ around the earth fourteen times. [ ]
A. took; going
B. spent; going
C. cost; to go
D. took; to go
答案：B