单项选择题

In the writer's view, ______.

A．people should be prepared for the future
B．there exists no threat of unemployment
C．unions can stop the unfavorable change
D．people had better become cleaners

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单项选择题

According to the writer, the rate of change in technology ______.

A．will remain the same.
B．will slow down
C．will speed up
D．can not be predicted

单项选择题

From the passage, we can infer that ______.

A．professionals won't be affected by new technology
B．doctors won't be as efficient as computers
C．computers can not replace lawyers
D．experts will know less in the future