单项选择题

The passage is primarily concerned with which of the following

A．Evaluating two competing technologies
B．Tracing the impact of a new technology by narrating a sequence of events
C．Reinterpreting an event from contemporary business history
D．Illustrating a business strategy by means of a case history

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单项选择题

According to the passage, today's successful firms, unlike successful firms in the past, may earn the greatest profits by

A．investing in research to produce cheaper versions of existing technology
B．being the first to market a competing technology
C．adapting rapidly to a technological standard previously set by a competing firm
D．emphasizing the development of methods for the mass production and distribution of a new technology

单项选择题

According to the passage, consumers began to develop a preference for VCR's in the VHS format be cause they believed which of the following

A．VCR's in the VI-IS format were technically better than competing-format VCR's.
B．VCR's in the VI-IS format were less expensive than competing-format VCR's.
C．VHS was the first standard format for VCR's.
D．VHS prerecorded videotapes were more available than Beta-format tapes.