单项选择题

Business needs to create a dissatisfied consumer because it______.

A．promotes competition
B．helps improving production
C．puts higher standard on the manufacturer
D．pushes forward product renovation
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单项选择题
According to the passage, the term materialism refers to______.
A．a theory that physical matter is the only reality
B．a doctrine that the only values lie in material well-being
C．a doctrine that economic or social change is materially caused
D．a focus on material rather than intellectual or spiritual things
单项选择题
The importance of the final consumer lies in______.
A．the potential buying power
B．the nature of the problem
C．changing the products into capital
D．the demands for various merchandises
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