单项选择题

According to the passage, the prices of information products and services will ______.

A．be a disaster for the users
B．go up in the developing countries
C．not stop decreasing in quite a long time.
D．drop sharply in future
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单项选择题
The problems mentioned in the passage ______.
A．last only in a short span of time
B．are widespread and long ranged
C．are caused by improper management
D．exist in the minority of the information industries
单项选择题
What is the major cause of the market failure of the entire information sector
A．There is not enough space for information sector to grow.
B．The products and services supplied are not satisfactory.
C．The information products and services are not competitive enough.
D．The costs are high and the benefits are low.
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