单项选择题

According to the passage, the price system is related primarily to ______.

A．labor and education
B．transportation and insurance
C．utilities and services
D．products and services
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单项选择题
The paragraph following the passage most likely discusses ______.
A．unusual ways to advertise products
B．types of payment plans for service
C．theories about how products affect different levels of society
D．how certain elements of a price "package" influence its market value
单项选择题
In our age, according to the author, a standpoint often taken in the area of ethics is the ______.
A．relativistic view of morals
B．greater concern with religion
C．emphasis on evil
D．greater concern with universals
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