单项选择题

According to the passage, today’s ultralight airplanes ______.

A．are inexpensive but difficult to fly
B．are more like go-karts than like hang gliders
C．cannot climb as fast or as high as hang gliders
D．are not too different from the earlier aircraft

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热门试题

单项选择题

The best title for this passage is ______.

A．The Flying Snowmobile
B．The History of Recent Aviation
C．How the Ultralight Plane Flies
D．The Ultralight Plane, a Recent Development

单项选择题

The author seems to feel that ultralight airplanes are ______.

A．a toy for the rich
B．nothing but hang gliders
C．a new development that meets the needs of aviation enthusiasts
D．the most important development in aviation since the Wright brothers' Flyer