170
17. One advantage of using prefabricated parts is that __.
A. fewer skilled workmen are required
B. this method is much cheaper
than standard methods
C. less land is required .
D. buildings can be put up much faster
18. When a building is constructed from standard parts that have been well-tested ___.
A. there is no scope
for originality
B. one is still not sure how they will behave in a particular situation
C. new methods of
construction are overlooked
D. one knows in advance that the result will be satisfactory
Computers can store vast amounts of information in a very
small space and are used by the
banks to keep accounts, print
out statements and control transactions. They are also used by the police to keep personal
records, fingerprints and other
details. In the rapidly developing field of
robotics computers
are now being used to control manual operations done by machines. These two are taking over
work, previously done by people, in the
manufacture of cars, in weaving and other industries.
Computers play an important role in controlling artificial satellites, decoding information and
com-munications generally. They are used to predict the weather with increasing accuracy.
19. One can conclude from the passage that __.
A. computers have become an indispensable part of our life
B. despite great advances in computer
techniques, they are not proving as useful as once hoped
C. weather forecasts carried out by computers are not reliable at all
D. robotics has long been a field of keen scientific
interest for man
20. The author points out that __.
A. industry is turning back to traditional methods of production
B. the police use computers to make sure that their records are not leaked
C. the principal use of computers is in space
technology
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