正确答案: C

circulation

题目：The new technological revolution in American newspapers has brought increased issue volume, a wider range of publications and an expansion of newspaper jobs.

解析：【答案】C【解析】circulation可表示书报的发行量，如：a newspaper with a daily circulation of 500，000．日发行量为50万份的报纸。可用于本题。manipulation“操作”；reproduction“再生产”；penetration“穿透”。此三项均不合题意。

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学习资料的答案和解析：

[单选题]According to this text__________.

阅读材料，回答下面的题目。The Diminishing Scientific Leadership of the U, S.With the rapid globalization of science itself ( more than 40 percent of scientific Ph.D. students trained in the United States are now foreign nationals, roughly half of whom return to their countries of origin ) , the once undisputed U.S.scientific lead, whether relevant to product lead or not, is diminishing. The competition of foreign students for positions in U.S.graduate schools has also contributed to making scientific training relatively unattractive to U.S.students, because the rapidly increasing supply of students has diminished the relative rewards of this career path. For the best and brightest from low-income countries, a position as a research assistant in the United States is attractive, whereas the best and brightest U.S.students might now see better options in other fields. Science and engineering careers, to the extent that they are opening up to foreign competition ( whether imported or available through better communication ) , also seem to be becoming relatively less attractive to U.S. students. With respect to the role of universities in the innovation process the speculative boom of the 1990s( which, among other things, made it possible to convert scientific findings into cash rather quickly ) was largely unexpected.The boom brought universities and their faculties into much closer contact with private markets as they tried to gain as much of the economic dividends from their discoveries as possible. For a while,the path between discoveries in basic science and new flows of hard cash was considerably shortened. But during the next few decades, this path will likely revert toward its more traditional length and reestablish in a healthy way, the more traditional ( and more independent ) relationship between the basic research done at universities and those entities that translate ideas into products and services.In the intervening years, another new force also greatly facilitated globalization: the rapid growth of the Internet and cheap wide-bandwidth international communication. Today, complex design activities can take place in locations quite removed from manufacturing, other business functions and the consumer. Indeed, there is now ample opportunity for real-time communication between business functions that are quite independent of their specific locations. For example, software are development, with all its changes and complications, can to a considerable extent be done overseas for a U.S.customer.Foreign call centers can respond instantly to questions from thousands of miles away.The result is that low-wage workers in the Far East and in some other countries are coming into even more direct competition with a much wider spectrum of U.S. labor: unskilled in the case of call centers; more highly skilled in the case of programmers.

the careers unattractive to U. S. students may not be so to foreign students

解析：【答案】A【解析】在文章第二段中，“For the best and brightest from low-income countries，a position as a research assistant in the United States is attractive，whereas the best and brightest U．S．students might nOW see better options in other fields”可看出，A项与其意思相符，美国和其他国家的学生兴趣不同，而并不是美国学生没有勇气和没准备好去面对竞争，可排除c，D选项，而8项过于绝对。

[单选题]The representation of a cultural phenomenon is usually a logical consequence of some physical aspect in the life style of the people.

manifestation

解析：【答案】B【解析】manifestation“表现(形式y：His smile was a manifestation ofjoy．他的微笑是他高兴的一种表现。implementation“执行”：demonstration“展示，示范”：a demonstration of a new car新汽车的示范表演。expedition“(为特定目的而作的)旅行，探险”：go on an expedition to the Antarctic南极探险。

[单选题]The Klondike was the scene of one of the biggest gold rushes the world has ever known.

location

[单选题] 

examined

[单选题]请在第_____处填上正确答案。

根据以下资料，回答下面的题目。 请在第_____处填上正确答案。

Thus

解析：最后一句是是对前文的一个总结和结果陈述，所以选thus，表示因此。still意为“仍然，尽管如此”，有转折的意味；however做连词意为“然而，但是”，是表示转折的常用连词；moreover意为“此外，而且”，表示更一步的说明或者补充。因此本题选D。