单项选择题

A characteristic of the information age is that __________

A．the service industry is relying more and more on the female work force
B．manufacturing industries are steadily increasing
C．people find it harder and harder to earn a living by working in factories
D．most of the job opportunities can now be found in the service industry
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单项选择题
One of the great changes brought about by the knowledge society is that ______
A．the difference between the employee and the employer has become insignificant
B．people' s traditional concepts about work no longer hold true
C．most people have to take part-lime jobs
D．people have to change their jobs from time to time
单项选择题
By referring to computers and other inventions, the author means to say that ________
A．people should be able to respond quickly to the advancement of technology
B．future achievements in technology will bring about inconceivable dramatic changes
C．the importance of high technology has been overlooked
D．computer science will play a leading role in the future information services
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