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(1)On October 24th, 2003 Concorde made its last commercial flight. It carried afull load of passengers, 100 of them, from New York to London. And it did soin three and a half hours. It was able to make the journey so rapidly because its top speed was Mach 2.04-just over twice the velocity of sound.
[单选题]
A.Its full load was 100 passengers
B.It traveled at the velocity of sound
C.Its commercial service began in 2003
D.It flew from London to New York in 3 hours
[单选题]
A.held on
B.given up
C.carried on
D.drawn up
[单选题]
A.The technology of supersonic airliners is mature
B.AS2's capacity is the largest among the three types
C.The aircraft planned by Boom is the fastest of the three types
D.The commercial operations are made by one American firm
[单选题]
A.will not be able to run subsonically
B.will not be manufactured until 2023
C.will use the airframe built by Aerion
D.will be equipped with supersonic engines
[单选题]
A.The military version of the CJ610
B.A supersonic plane prototype
C.The baby boom generation
D.An aircraft manufacturer
[单选题]
A.pragmatic
B.far-sighted
C.intellectual
D.down-to-earth
[单选题]
A.The engine cannot be accelerated to Mach 5
B.There is not enough air when the engine is working
C.The material of the engine is not sufficiently heat-resistant
D.The engine cannot power the plane to reach the expected speed
[单选题]
A.It can work under absolute zero
B.It can be fuelled by liquid oxygen
C.It can absorb the cold inrushing air
D.It can protect the engine from damage
[单选题]
A.The companies out of the auto industry
B.The other supersonic engine designers
C.The other companies outside the team
D.The experts in their rival groups
[单选题]
A.A New Aircraft
B.Faster than Sound
C.A New Engine
D.Better than Ever
