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单项选择题

The word optimum in Paragraph 4 is closest in meaning to ______.

A．most accurate
B．best
C．latest
D．fastest

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单项选择题With what topic is paragraph 4 mainly concerned

A．The importance of management techniques.
B．The complexity of hospital design.
C．Uses of computers in industry.
D．Applications of the systems approach.

单项选择题The author mentions hearing aids and television cameras as examples of ______.

A．spin-offs from the technology required to make miniature durable instruments for space flight
B．important applications of space research in industry
C．inventions by aerospace scientists in England
D．ways to enhance the benefits of the systems approach