单项选择题

A．To restore the normal production of the oil wells.
B．To estimate the losses caused by the fires.
C．To remove the oil left in the desert.
D．To use the oil left in the oil lakes.
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单项选择题
A．At weekends.B．On weekdays.C．Late in the week.D．On Thursday.
A．At weekends.
B．On weekdays.
C．Late in the week.
D．On Thursday.
单项选择题
A．There are 200 vehicles for every kilometer of roadway.B．It has a dense population.C．There are many museums and palaces.D．It has many towering buildings.
A．There are 200 vehicles for every kilometer of roadway.
B．It has a dense population.
C．There are many museums and palaces.
D．It has many towering buildings.
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