单项选择题

Representative samples( )taken by the inspector from the whole lot yesterday.

A．was
B．is
C．were
D．are
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单项选择题
Portland is a city of( ).
A．Poland
B．Australia
C．U.S.A
D．New Zealand
单项选择题
CIF means Cost, ( )and Freight.
A．Money
B．Inspect
C．Insurance
D．Inspection
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