问题
单项选择题
The exhibition is held ______our own expense and______ last year's prices. ( )
A．for, at
B．for, with
C．at, at
D．for, for
答案
参考答案：C
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The exhibition is held ______our own expense and______ last year's prices. ( )
A．for, at
B．for, with
C．at, at
D．for, for
参考答案：C