单项选择题

What can we infer from the first sentence of the passage

A．Electronic products have become indispensable to people.
B．Electronic products have become a nuisance to people.
C．Only part of electronic products can bring benefits to people.
D．Some electronic products do harm to people.
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单项选择题
What does the author imply by saying This is not cheating in the last paragraph
A．Nobody will consider it a cheat to reuse parts from old products in new models.
B．Usually people will feel being cheated when old parts are used in new products they buy.
C．Reusing parts from old products in new models will not be punished because it isn't cheating.
D．Electronics manufacturers should tell customers there are used parts in new products.
单项选择题
According to the passage, the disadvantage of the high-tech revolution is that ______.
A．it brings many new and exiting things which may have a bad effect on society
B．it makes electronic products timeworn quickly and become junk
C．it wastes a lot of natural resources and causes environmental problems
D．it creates many new products which arouse people's desires
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