单项选择题

A．Because both have a limited supply of air, water, and other resources.
B．Because the Earth moves around the sun as fast as a spaceship.
C．Because we can travel to outer space.
D．Because the Earth never stops moving.
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单项选择题
A．The man and the woman are operators.B．The man is trying to catch up with Tom.C．Tile man is telephoning Tom.D．The man and the woman are very busy.
A．The man and the woman are operators.
B．The man is trying to catch up with Tom.
C．Tile man is telephoning Tom.
D．The man and the woman are very busy.
单项选择题
A．He looks for some information far his hair loss.B．He seeks some information for his company.C．He relaxes himself by reading some news on the Net.D．He emails some information about the treatment of hah’ loss.
A．He looks for some information far his hair loss.
B．He seeks some information for his company.
C．He relaxes himself by reading some news on the Net.
D．He emails some information about the treatment of hah’ loss.
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