单选题
单选题That TV news program plays______sensational stories just to get higher ratings.
单选题There are only three available strategies for controlling cancer: prevention, screening and treatment. Lung cancer causes more deaths than any other types of cancer. A major cause of the disease is not
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known; there is no good evidence that screening is much help; and treatment fails in about 90 percent of all cases. At present, therefore, the main strategy must be
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This may not always be true, of course, as for some other types of cancer, researches over the past few decades have produced (or suggested) some importance in prevention, screening or treatment.
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, however, we consider not what researchers may one day offer but what today"s knowledge could already deliver that is not being delivered, then the most practical and cost-efficient opportunities for avoiding premature death from cancer, especially lung cancer, probably involve neither screening nor improved
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, but prevention.
This conclusion does not depend on the unrealistic assumption that we can eliminate tobacco. It merely assumes that we can reduce cigarette sales appreciably by raising prices or by
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on the type of education that already appears to have a positive effect on cigarette assumption by white-collar workers and that we can substantially reduce the amount of tar
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per cigarette. The practicability of preventing cancer by such measures applies not only in those countries, such as, the United States of America, because cigarette smoking has been common for decades, 25 to 30 percent of all cancer deaths now involves lung cancer, but also in those where it has become
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only recently. In China, lung cancer as yet accounts for only 5 to 10 percent of all cancer deaths. This is because it may take as much as half a century for the rise in smoking to increase in the incidence to lung cancer. Countries where cigarette smoking is only now becoming widespread can expect enormous increase in lung cancer during the 1990"s or early in the next century,
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prompt effective action is taken against the habit—indeed, such increase are already plainly evident in parts of the world.
There are reasons why the preventions of lung cancer is of such overwhelming importance. First, the disease is extremely common, causing more deaths than any other types of cancer now
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; secondly, it is generally incurable; thirdly, effective, practicable measures to reduce its incidence are already reliably known; and finally, reducing tobacco consumption will also have a substantial
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on many other diseases.
单选题She thought it was ______ not to know some of the basic facts of her country.
单选题[此试题无题干]
单选题Bill is an example of a severely disabled person who has become ______ at many survival skills.(2011年四川大学考博试题)
单选题Professor Smith' s new invention has created a great ______ on the campus. A. sensation B. selection C. imitation D. irrigation
单选题The completion of the new Town Hall has been ______ owing to a strike.
单选题His sprained ankle ______ his chances of winning the tournament. A. damaged B. broke C. ruined D. demolished
单选题(略){{B}}Part Ⅱ Vocabulary{{/B}}There are four passages in this part.
Each passage is followed by some questions or unfinished statements. For each of
them there are four choices marked A, B, C and D. You should decide on the best
choice and mark the corresponding letter on the Answer Sheet with a single line
through the centre.Passage one: Questions 21-25 are based on the following
passage.
This year the combined advertising
revenues of Google and Yahoo ! will rival the combined primetime ad revenues of
America's three big television networks, ABC,CBS and NBC predicts Advertising
Age. It will, says the trade magazine, represent a "watershed moment" in the
evolution of the internet as an advertising medium. A 30-second prime-time TV ad
was once considered the most effective--and the most expensive--form of
advertising. But that was before the internet got going. And this week online
advertising made another leap forward. This latest innovation
comes from Google, which has begun testing a new auction-based service for
display advertising. Both Google and Yahoo! make most of their money from
advertising. Auctioning keyword search-terms,which deliver sponsored links to
advertisers' websites, has proved to be particularly lucrative. And advertisers
like paid-search because, unlike TV, they only pay for results: they are charged
when someone clicks on one of their links. Both Google and
Yahoo! along with search-site rivals like Microsoft's MSN and Ask Jeeves, are
developing much broader ranges of marketing services. Google, for instance,
already provides a service called AdSense. It works rather like an advertising
agency, automatically placing sponsored links and other ads on third-party
websites. Google then splits the revenue with the owners of those websites, who
can range from multinationals to individuals publishing blogs, as online
journals are known. Google's new service extends AdSense in
three ways. Instead of Google's software analyzing third-party websites to
determine from their content what relevant ads to place on them, advertisement
will instead be able to select the specific sites where they want their ads to
appear. This provides both more flexibility and control, says Patrick Keane,
Google's head of sales strategy. The second change involves
pricing. Potential internet advertisers must bid for their ad to appear on a
"cost-per-thousand" (known as CPM) basis. This is similar to TV commercials,
where advertisers pay according to the number of people who are supposed to see
the ad. But the Google system delivers a twist: CPM bids will also have to
compete against rival bids for the same ad space from those wanting to pay on a
"costper-click" basis, the way search terms are presently, sold. Click-through
marketing tends to be aimed at people who already know they want to buy
something and are searching for product and price information, whereas display
advertising is more often used to persuade people to buy things in the first
instance. The third change is that Google will now offer
animated ads--but nothing too flashy or annoying, insists Mr. Keane. Such ads
are likely to be more appealing to some the big-brand advertisers. Spurred on by
the spread of faster broadband connections, such companies are becoming
increasingly interested in so-called "rich-media" ads. like animation and
video.
单选题Why are some of us good at math, or writing, while others ______ at art or basketball? A. work B. gaze C. aim D. excel
单选题Standing on the seashore, we could just see the ship on the______.
单选题Can you imagine! He offered me $ 5000 to break my contract. That's
______ . Of course I didn't agree. I would take legal action.
A. fraud
B. blackmail
C. bribery
D. compensation
单选题The Aleuts, residing on several islands of the Aleutian Chain, the Pribilof Islands, and the Alaskan peninsula have possessed a written language since 1825, when the Russian missionary Ivan Venation selected appropriate characters of the Cyrillic alphabet to represent Aleut speech sounds, recorded the main body of Aleut vocabulary and formulated grammatical rules. The Czarist Russian conquest of the proud, independent sea hunters was so devastatingly thorough that tribal traditions, even tribal memories, were almost obliterated. The slaughter of the majority of an adult generation was sufficient to destroy the continuity of tribal knowledge, which was dependent upon oral transmission. As a consequence, the Aleuts developed a fanatical devotion to their language as their only cultural heritage. The Russian occupation placed a heavy linguistic burden on the Aleuts. Not only were they compelled to learn Russian to converse with their overseers and governors, but they had to learn Old Slavonic to take an active part in church services as well as to master the skill of reading and writing their own tongue. In 1867, when the United States purchased Alaska, the Aleuts were unable to break sharply with their immediate past and substitute English for any one of their three languages. To communicants of the Russian Orthodox Church a knowledge of Slavonic remained vital as did Russian, the language in which one conversed with the clergy. The Aleuts came to regard English education as a device to wean them from their religious faith. The introduction of compulsory English schooling caused a minor renascence of Russian culture as the Aleut parents sought to counteract the influence of the schoolroom. The harsh life of the Russian colonial rule began to appear more happy and beautiful in retrospect. Regulations forbidding instruction in any language other than English increased its unpopularity. The superficial alphabetical resemblance of Russian and Aleut linked the two tongues so closely that every restriction against teaching Russian was interpreted as an attempt to eradicate the Aleut tongue. From the wording of many regulations, it appears that American administrators often had not the slightest idea that the Aleuts were clandestinely reading and writing their own tongue or even had a written language of their own. To too many officials, anything in Cyrillic letters was Russian and something to be stamped out. Bitterness bred by abuses and the exploitations the Aleuts suffered from predatory American traders and adventurers kept alive the Aleut resentment against the language spoken by Americans. Gradually despite the failure to emancipate the Aleuts from a sterile past by relating the Aleut and English languages more closely, the passage of years has assuaged the bitter misunderstandings and caused an orientation, away from Russian toward English as their second language, but Aleut continues to be the language that molds their thought and expression.
单选题The Supreme Court______the judgment of the lower court in that case last week. (2009年北京航空航天大学考博试题)
单选题From that we read we can infer that "it was a normal day in the life of the American Red Cross in Greater New York" means its staff ______.
单选题Being a pop star can be quite a hard life, with a lot of travelling ______ heavy schedules.
单选题He cut the string and held up the two ______ to tie the box.
单选题The universal historians give contradictory replies to that question, while the historians of culture ______ giving a direct answer. A. evade B. miss C. shirk D. steer
单选题In this age, education is considered an important key to success and minority groups especially are ______ to better themselves by going to college.
