单项选择题

The only way to stop the spread of aerosols in the atmosphere, according to Dr. Rasool and Dr. Schneider, is to use ______.

A．fossil fuels
B．electric power
C．nuclear energy
D．coal power
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单项选择题
The author's main purpose in writing the article is to warn of ______.
A．warm weather
B．hot weather
C．a new ice age
D．a new iceberg
单项选择题
What will happen if the dust aerosol layer develops
A．The earth will get extremely hot.
B．The balance between the amount of heat absorbed from the Sun and the amount lost could hardly be maintained.
C．The light of the Sun could no longer reach the surface of the Earth.
D．Infrared radiation could no longer be transmitted from the Earth to outer space.
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