单项选择题

By "the uninitiated individual" ( Para. 1 ) the author refers to the person ______.

A．who has not been instructed how to use a life preserver
B．who has a little experience in using a life preserver
C．who uses a life preserver without permission
D．who becomes nervous before a disaster
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单项选择题
The closest restatement of one industry may kill another industry . (Sent. 6, Para. 1). is that ______.
A．industries tend to compete with one another
B．industries tend to combine into bigger ones
C．one industry may increase its staff at the expense of another
D．one industry might be driven out of business by another industry
单项选择题
The major problem discussed in the passage is ______.
A．the importance of lifelong retraining of the unemployed workers
B．the social consequences of the widespread use of computers in the United States
C．the barrier to the employment of young people
D．the general rule of the advancement of technology
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