单项选择题

Fred’s friend Para actually knows quite about Fred’s story because

A．other people have told him about it.
B．he happened to be on the same plane.
C．he watched the news on TV.
D．he read Fred’s article in the New York Times.
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单项选择题
The Pan Am pilot circled round for hours and then the plane was heading for Hartford. When we got to Hartford, he didn’t let anyone leave the plane to
A．transfer to another flight.
B．make a phone call.
C．complain to the service department.
D．buy something at the airport.
单项选择题
Which of the following signified that a new theory was established
A．The general theory of relativity makes more accurate prediction of the motion of Mercury than the theory of gravity.
B．It is much simpler to work with the theory of gravity than with the general theory of relativity.
C．The general theory of relativity evolved from the theory of gravity.
D．The general theory of relativity is used for scientific research while the theory of gravity is used for all practical purposes.
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