单项选择题

According to the passage, the "wasteland" (Line 5, Para. 1) refers to ______.

A．Western bad men and Western good men
B．average television programs
C．the morning shows
D．television shows with desert settings
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单项选择题
According to the passage, modern societies control supply and demand ______.
A．by fixing prices in specific industries
B．by means of money and the price mechanism
C．by keeping a watchful eye on relative price changes
D．by direct intervention in the pricing of goods and services
单项选择题
The author suggests that economics is concerned with ______.
A．explaining to bankers the consequences of price changes
B．giving the same financial considerations as banking
C．trying to understand why some prices rise faster than others
D．understanding the effect of relative price changes
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