单项选择题

They have signed the () to export textiles.?

A、content
B、contract
C、contact
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单项选择题
We work closely（）every large airline like Air China，Air France and American Airlines.

A、in
B、to
C、with
单项选择题
Foreign embassies provide nice programs and a great deal of information about their goods ()exporting.
A、promote
B、to promote
C、to be promoted
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