单选题：The frictionless maglev train enables you __________

题目分类：理工类
题目类型：单选题
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题目内容：

The frictionless maglev train enables you __________ A．to develop a maglev train rail system
B．to explain why maglev trains are faster
C．to pull and push the train forward
D．to create a magnetic field
E．to experiment with the maglev train
F．to travel from Paris to Rome in about two hours

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答案解析：

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