单项选择题

Some people think the railways are unnecessary because

A．planes and motorcars have taken the place of trains
B．oil is expensive today
C．trains are superfast
D．railways gain a large amount of money
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单项选择题
It is agreed That remaining in a bad relationship not only causes continual stress but may even be physically harmful.
A．保持不良关系不但会引起持续的精神紧张，甚至还可能有害健康，这是大家共认的。
B．僵硬的人际关系不仅引起持续的压力，而且引起身体的危害，大家都同意这一点。
C．呆在一个坏的环境中不仅会带来巨大的压力，而且还会精神衰弱，这已是共识。
D．坏关系只会造成继续的压力，但不会引起物理上的危害，没人会反对这一点。
单项选择题
It is implied by the writer that ______.
A．it is cheaper to travel by plane than by train
B．the railway station is usually in the suburb of the city
C．when you get off the plane you will find yourself in the center of the city
D．no motorcar or plane can carry as many good as a train does
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