单项选择题

A. Keep it away from heat, drafts and humidity.
B. Keep it as empty as possible.
C. Wash its interior frequently.
D. Set it regularly at zero degree.
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单项选择题
A. They will have to repay the money received from the government.B. They could be restricted or blocked from federal student aid.C. They will be prohibited from enrolling more students.D. They will be supervised more strictly in future.
A. They will have to repay the money received from the government.
B. They could be restricted or blocked from federal student aid.
C. They will be prohibited from enrolling more students.
D. They will be supervised more strictly in future.
单项选择题
A. It will reduce the amount of pollutants in the air.B. It will increase the amount of unpleasant odors from vehicles.C. It will eventually destroy the ozone layer.D. It will reduce the cost of running large vehicles.
A. It will reduce the amount of pollutants in the air.
B. It will increase the amount of unpleasant odors from vehicles.
C. It will eventually destroy the ozone layer.
D. It will reduce the cost of running large vehicles.
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