单项选择题


A．concentrated
B．concentrating
C．concentration
D．concentrate
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单项选择题
According to the news, what are Defense Department officials expected to do on Friday
A．To announce the plans to detect drug smugglers.
B．To stop the flow of drugs northward from Latin America.
C．To expand the use of military personnel.
D．To throw more ships, planes and personnel into the anti-drug movement.
单项选择题
What was rejected by Columbia in January
A．The use of reconnaissance satellites in Columbia.
B．The training of counter-narcotics personnel.
C．The proposal of stationing warships off the Columbian coast.
D．The expanded use of military weapons.
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