单项选择题

Some investigations show that the cause of the accident may be the plane engine’s failure to operate.

A．调查表明，事故原因可能是飞机发动机未能发动。
B．调查表明，飞机失事原因可能是发动机失灵。
C．一些调查显示，事故原因可能是技师不当驾驶造成的。
D．一些调查显示，事故原因可能是发动机未能发动。

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热门试题

单项选择题

A professional sportsman is someone who ().

A．makes money in his spare time
B．play all the time
C．earns money by playing a sport
D．play for his country and the people

单项选择题

Compared with the Beatles, Bob Dylan ().

A．has more influence on rock music
B．has sold fewer records of his songs
C．is more important in the record industry
D．is less important in American rock