问题
选择题
Chang'e Ⅰwas sent up into space _____________ October 24th, 2007. [ ]
A. at
B. in
C. on
D. to
答案
答案：C
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Chang'e Ⅰwas sent up into space _____________ October 24th, 2007. [ ]
A. at
B. in
C. on
D. to
答案：C