What has resulted in Americans pessimism？
A. People living in America have no longer felt secure.
B. American economy has undergone a severe decline.
C. The political climate in America is being worse.
D. Some countries are developing faster than America.
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What is said about the survey made by Xavier University？
A. It is hard for people to explain clearly what American Dream means.
B. A great majority believes it will be more difficult to achieve American Dream.
C. The survey showed that all generations are fascinated with American Dream.
D. The survey has not drawn any meaningful conclusions.
生态农业是一种积极采用生态友好方法，全面发挥农业生态系统服务功能，促进农业可持续发展的农业方式。()
The author provides information concerning newly farmed lands in the United States in paragraph 1 to support
A. a proposal by Frederick J. Turner that was later disputed by John D. Hicks.
B. an elaboration by John D. Hicks of thesis that formerly had been questioned by Turner.
C. the thesis that important changes occurred in the nature of international trade during the second half of the 19th century.
D. the view that the American frontier did not become closed during the 19th century or soon thereafter.
真正把大学生“村官”制度作为农村建设输送人才的一项短期战略计划，积极培养他们成为农村中的精英群体。()
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