单项选择题

A．A lack of available flights.
B．Long delays at the airport.
C．When flying over cities.
D．When flying at high altitudes.
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单项选择题
A．The sale of the old houses.B．The pulling down of the gas company.C．The proposal of the council.D．The building of the office blocks.
A．The sale of the old houses.
B．The pulling down of the gas company.
C．The proposal of the council.
D．The building of the office blocks.
单项选择题
A．Crime need to be treated as a disease.B．Primitive punishment will do no good.C．Severe punishment is necessary to stop crime.D．Primitive people had trouble with crime treatment.
A．Crime need to be treated as a disease.
B．Primitive punishment will do no good.
C．Severe punishment is necessary to stop crime.
D．Primitive people had trouble with crime treatment.
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