The passage is mainly discussing about（）
A. introduce the early period of industry development in the United States.
B. how important the economic life is in the America society.
C. the early development of American economy in 17th century.
D. how difficult the early life was in the 18th century of America.
12（）
A. These introductory texts are the most important books and using them can pay big dividends.
B. Discover practical tips and techniques you can apply without delay.
C. In order to avoid this problem, we select for you only the truly worthwhile titles and reject the rest.
D. According to studies published in psychology journals, you retain the content of a summary better than a book.
E. He or she would take the most important ideas from each one, and compile them into a neat executive summary.
F. With the breath and depth of knowledge gained from books, it is less likely that you’ll be caught off guard.
G. Each contains all the key points in the original book, but instead of 200 to 500 pages there are only eight pages.
什么是创新型人才学校教育如何培养创新型人才
Most violence happens in parking areas.
11（）
A. These introductory texts are the most important books and using them can pay big dividends.
B. Discover practical tips and techniques you can apply without delay.
C. In order to avoid this problem, we select for you only the truly worthwhile titles and reject the rest.
D. According to studies published in psychology journals, you retain the content of a summary better than a book.
E. He or she would take the most important ideas from each one, and compile them into a neat executive summary.
F. With the breath and depth of knowledge gained from books, it is less likely that you’ll be caught off guard.
G. Each contains all the key points in the original book, but instead of 200 to 500 pages there are only eight pages.
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