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明确提出教育体制改革的根本目的就是提高中华民族素质，多出人才，出好人才的是（　　）

A.《关于学制改革的决定》
B.《关于教育工作的指示》
C.《中共中央关于教育体制改革的决定》
D.《中国教育改革发展纲要》

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?goods.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 tree 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 benefits associated with public goods.There is no practicable way of charging drivers for looking at highway signs,sailors for watching a?lighthouse,and citizens for the security provided to them through national defense.Because the market does not provide the necessary signals,economic analysis has to be substituted for the impersonal?judgement of the marketplace.

Which of the following statements best describes the organization of the first two paragraphs?

A.Suggestions for the application of an economic concept are offered.
B.Several generalizations are presented from which various conclusions are drawn.
C.Persuasive language is used to argue against a popular idea.
D.A general concept is defined and then examples are given.

王老师在教学过程中主要贯彻了哪些教学原则?试结合案例加以分析。