单项选择题

By "the uninitiated individual" ( Par

A．1 ) the author refers to the person ______.A. who has not been instructed how to use a life preserverB. who has a little experience in using a life preserverC. who uses a life preserver without permissionD. who becomes nervous before a disaster

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单项选择题

A coastguard does NOT require the life preserver to be made ______.

A．with as few strings as possible
B．capable of being worn on both sides
C．according to each wearer's size
D．comfortable and light to wear

单项选择题

Which of the following is NOT mentioned in the passage

A．Computers are efficient in retraining unemployed workers.
B．Computers may offer more working opportunities than they destroy.
C．Computers will increase the unemployment rate of young blacks.
D．Computers can help smaller organizations to function more effectively.