问题
选择题
There will be interval of 20 minutes after second act.
A．an;a
B．an;the
C．不填；the
D．the;a
答案
答案：B
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There will be interval of 20 minutes after second act.
A．an;a
B．an;the
C．不填；the
D．the;a
答案：B
