[单项选择]According to passage, public goods are ______.
A. services enjoyed by all people
B. what we can buy and sell in public
C. products that we make for national defense
D. taxes paid by the people involved

[单项选择]According to the passage, public goods are （）.
A. services enjoyed by all people
B. what we can buy and sell in public
C. products that we make for national defense
D. taxes paid by the people involved

[单项选择]

Passage One
Public goods are those commodities from whose enjoyment nobody can be effectively excluded. Everybody is free to enjoy the benefits of these commodities, and one person’ s utilization does not reduce the possibilities of anybody else’ s enjoying the same good.
Examples of public goods are not as rare as one might expect. A flood control dam is a public good. Once the dam is built, all persons living in the area will benefit--irrespective of their own contribution to the construction cost of the dam. The same holds true for highway signs or aids to navigation. Once a lighthouse is built, no ship of any nationality can be effectively excluded from the utilization of the lighthouse for navigational purposes. National defense is another example. Even a person who voted against military expenditures or did not pay any taxes will benefit from the protection afforded.
It is no easy task to determine the social costs and social benef
A. difficult procedure
B. daily administrative duty
C. matter of personal judgment
D. citizen' s responsibility

[单项选择]According to the passage, new settings for public art are appearing as a result of
A. ( communities that are building more art museums
B. ( artists who are moving to urban areas
C. ( urban development and renewal
D. ( an increase in the number of artists in the United State

[单项选择]According to the passage, what would a public relations personnel probably do after a decision is made in industry
A. Plan and have some promotional activities.
B. Give some suggestions to the decision-maker.
C. Set up communication with the public.
D. Organize some special events like press conference.