单项选择题

Textile business has become more and more difficult( )the competition grew.

A．as
B．befor
C．since
D．after
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The currency of Finland is( )
A．pound
B．Markka
C．peso
D．euro
单项选择题
We ( ) some usual international practices.
A．have adopted
B．adopt
C．adopted
D．have been adopted
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