单项选择题

Argonne believes that people should regard maglev transportation as ______.

A．safe, efficient high-speed trains
B．the most exciting form of transportation for the future
C．a kind of aircraft
D．the most economical form of transportation

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单项选择题

For a commuter trip of 500 miles, about how much less fuel would maglev train use compared to a small plane A) 25%. C) 75%. B) 50%. D) 80%.

A．For a commuter trip of 500 miles, about how much less fuel would maglev train use compared to a small plane
B．25%.
C．50%.
D．75%.
E．80%.

单项选择题

Why could maglev trains replace short-flight commuter aircraft A) Maglev trains are faster. C) Maglev trains are more fuel-efficient. B) Maglev trains are cheaper. D) Maglev trains are safer.

A．Why could maglev trains replace short-flight commuter aircraft
B．Maglev trains are faster.
C．Maglev trains are cheaper.
D．Maglev trains are more fuel-efficient.
E．Maglev trains are safer.

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