单项选择题

It is implied in the passage that ________.

A．the growth of the Internet business is too fast
B．the spread of a new invention can make people live better
C．most Internet companies are unlikely to be out of business
D．some survived Internet companies can achieve some meaningful earnings

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热门试题

单项选择题

The reasons why the inventions failed to deliver to investors the expected rewards include all the following except ________.

A．the policies of the states
B．the following innovations
C．the commercialization of the invention
D．the competition from the latter imitation

单项选择题

The Erie Canal is mentioned in the passage because ________.

A．it ended just a few years later in a tremendous failure
B．it suffered from competition from railroads and trucks
C．it proved to be less profitable than its investors expected
D．its success led to the great American canal boom in the 1830s