问题
选择题
Shenzhou VI returned safely to Earth ______ October 17,2005 after a five-day flight. [ ]
A. in
B. on
C. at
D. during
答案
答案：B
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Shenzhou VI returned safely to Earth ______ October 17,2005 after a five-day flight. [ ]
A. in
B. on
C. at
D. during
答案：B