单项选择题

A．The population has increased.
B．The population has decreased.
C．The population has remained the same.
D．The population is getting older.
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单项选择题
A．Most victims were rescued successfully.B．The explosion caused the traffic jam in the street.C．The ambulance men failed to save the victim under the bricks.D．The company of the gas pipes was not blamed for the accident.
A．Most victims were rescued successfully.
B．The explosion caused the traffic jam in the street.
C．The ambulance men failed to save the victim under the bricks.
D．The company of the gas pipes was not blamed for the accident.
填空题
convenience
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