问题
选择题
_______China’s first manned space flight took place?
A．When it was that
B．Was it when that
C．When was it that
D．Was it that when
答案
答案：C
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_______China’s first manned space flight took place?
A．When it was that
B．Was it when that
C．When was it that
D．Was it that when
答案：C