单项选择题

This passage is concerned with ______.

A．the revival of some North American and European CBDs
B．the problems facing the development of U. S. downtown areas
C．the moving pattern of the U.S. middle class
D．the possible solutions to the fiscal problems

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单项选择题

As is suggested in the passage, the most likely result of the two alternatives in solving the fiscal problem is ______.

A．a greater concentration of middle-class residents in central cities
B．a sharp decline of the life quality in central cities
C．a boom in setting up factories and offices in central cities
D．a rapid development of public transportation

单项选择题

The underclass people are unable to compete for jobs mainly because of their ______.

A．lack of industriousness
B．poor education
C．financial problems
D．negative attitude toward'work