单项选择题


Passage Two
Questions 29 to 31 are based on the passage you have just heard.

A．It might increase airport capacity.
B．It might lower property values.
C．It might lead to effective modification of existing jet engines.
D．It might cause more transportation costs to and from airports.
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单项选择题
A．Entering a large company without application.B．Programming human feelings into machines.C．Deciding one’s best partner through a computer.D．Matching up people with questionnaires.
A．Entering a large company without application.
B．Programming human feelings into machines.
C．Deciding one’s best partner through a computer.
D．Matching up people with questionnaires.
填空题
Why are the speeds on motorways greater than those on other roads
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