revealed
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
回答下面的题目：A．that have favorable overtones for the company initiated by the public relations departmentB．not all publicity is initiated by the firmC．usually in the form of press releases or press conferencesD．such as its product quality, the servicing and handling of complaints, and the tenor of the advertisingE. what it means to the company isF. Although the basic purpose of public relations is to provide positive influence on the public image_____
likely
回答下面的题目：Screen TestEvery year millions of women are screened with X-rays to pick up signs of breast cancer．If this happens early ecough, the disease can often be treated successfully．According to a survey published last year, 21 countries have screening programmes．Nine of them, including Australia, Canada, the US and Spain, screen women under 50.But the medical benefit of screening these younger women are controversial, partly because the radiation brings a small risk of inducing cancer．Also, younger women must be given higher doses of X-rays because their breast tissue is denser.Researchers at the Polytechnic University of Valencia analysed the effect of screening more than 160,000 women at 11 local clinics．After estimating the women’s cumulative dose of radiation, they used two models to calculate the number of extra cancers this would cause.The mathematical model recommended by Britain’s National Radiological Protection Board (NRPB) predicted that the screening programme would cause 36 cancers per 100,000 women, 18 of them fatal．The model preferred by the UN Scientific Committee on the Effects of Atomic Radiation led, to a lower figure of 20 cancers.The researchers argue that the level of radiation-induced cancers is “not very significant” compared to the far larger number of cancers that are discovered and treated．The Valencia programme, they say, detects between 300 and 450 cases of breast cancer in every 100,000 women screened.But they point out that the risk of women contracting cancer from radiation could be reduced by between 40 and 80 percent if screening began at 50 instead of 45, because they would be exposed to less radiation．The results of their study, they suggest, could help “optimise the technique” for breast cancer screening.“There is a trade-off between the diagnostic benefits of breast screening and its risks.” admits Michael Clark of the NRPB．But he warns that the study should be interpreted with caution．“On the basis of the current data, for every 10 cancers successfully detected and prevented there is a risk of causing one later in life．That’s why radiation exposure should be minimised in any screening programme.”Paragraph 2_____
Small Risk of Inducing Cancers from Radiation
recommended
根据材料，完成下面的题目。UFOS Sixty years ago, a. man named Kenneth Arnold saw something that we can still (51) today -- something that changed popular culture for ever.Flying his plane over mountains in the U. S. state of Washington, he saw a,line of strange objects, either crescent-shaped (月牙形的) or disc-like, flying (52) the motion of a saucer (碟) skimming (飞速掠过) on water. The media soon picked up on the story -- the Flying Saucers were here] Was the earth being (53) by creatures from another planet? Soon, So many sightings were made that the U. S. military began to (54) It called these strange Objects UFOs – Unidentified Flying Objects, and that is how they are (55) today. Military investigations found no evidence of visitors from outer space. But that did not stop the true (56) The military were (57) up, they said. Or maybe it was because the travelers from space were of such superior intelligence (58) they could hide from military analysts (分析家).People have always seen strange lights in the sky. In the past these were explained in (59) ways. In a world where religion was less influential and science fiction was popular, signs from God were replaced by visitors from other (60). The date of the first UFO sightings was also significant. In 1947, World War II had just ended and the (61) War was just .beginning. Humanity seemed locked in endless conflicts. Like generations before them, people looked (62) the skies for help. But instead of seeking God, they looked for help from super-intelligent aliens (外星人) with (63) technology. Belief in UFOs became the first religion of science.However, even people who believe in UFOs are not quite sure why they visit the earth.The universe is a big place and it is (64) to assume that there is life somewhere out there. It is possible that aliens have worked out how to travel through space. Yet some people report that they have been taken by aliens and have had experiments (65) on them. Why would anyone travel across half the universe to conduct medical experiments on people living in small towns in the United States?请在第__51__处填上正确答案。
to
根据以下资料，回答下面的题目。 请在第____处填上正确答案。
conduct
past
fulfilled
- Goethe often did outdoor skating and swimming.
- Since the birth of the Barbie doll it has served as a sign t
- 外语考试2022职称英语历年考试试题试卷(6S)
- According to the passage, it may soon be possible__________
- The last few weeks have been enjoyable
- 请在第__(60)__处填上正确答案。
- 第65题应选：
- She can speak French and German, let alone English.
- The representation of a cultural phenomenon is usually a lo
- 职称英语2022冲刺密卷正确答案(04.07)
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