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The INMARSAT consists of（）major components.
A . 4
B . 9
C . 8
D . 5
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In the Northern Hemisphere the major ocean currents tend to flow（）.
A . clockwise around the North Atlantic and North Pacific Oceans
B . clockwise or counterclockwise depending on whether it is warm or cold current
C . counterclockwise except in the Gulf Stream
D . counterclockwise around the North Atlantic and North Pacific Ocea
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In North America the majority of the weather systems move from（）.
A . north to south
B . south to north
C . east to west
D . west to east
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The major difference between the discharge and suction valves installed in most low pressure, reciprocating air compressors is that（）
A、one valve seats upwards, while the other seats downwards
B、the reed valves used on the discharge are made substantially thicker and heavier than thesuction valves
C、the suction valve springs exert a greater tension than the discharge valve springs
D、the discharge valve springs exert a greater tension than the suction valve springs
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The following are the major newspapers in Ireland except（）.
A . the Irish Independent
B . the Irish Times
C . the Irish Press
D . the Sum
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There are no major differences between how one reads in one’s mother tongue and how one reads in a foreign language.（）
A . 正确
B . 错误
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What are two major differences between MS-SPRing and SNCP？（）
A . In an MS-SPRing， all paths are protected.
B . MS-SPRing is always a high-order protection.
C . A low order circuit cannot be protected by an MS-SPRing.
D . There is no theoretical limit in the number of nodes in an SNCP ring.
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Which of these statements best describes the major difference between an IPv4-compatible tunnel and a 6to4 tunnel？（）
A . An IPv4-compatible tunnel is a static tunnel， but an 6to4 tunnel is a semiautomatic tunnel.
B . The deployment of a IPv4-compatible tunnel requires a special code on the edge routers， but a 6to4 tunnel does not require any special code.
C . An IPv4-compatible tunnel is typically used only between two IPv6 domains， but a 6to4 tunnel is used to connect to connect two or more IPv6 domains.
D . For an IPv4-compatible tunnel， the ISP assigns only IPv4 addresses for each domain， but for a 6to4 tunnel， the ISP assigns only IPv6 addresses for each domain.
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What is the major function of the Parliament?
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The satellites over the major ocean regions cover the globe（）.
A . besides the polar regions
B . including the North Pole and the South Pole
C . above 70°N and below 70°S
D . as for north and south as 70°
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In most cases, the majority of the people surveyed will respond.
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The major theme of the novel is _________.
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What are the three major variations of the External Narrator?
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Which of the following chioces are the two major Parties in the America?
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What is the major difference between Chinese and English?
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The report____the major problems facing society today.
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3.What is the major problem the young generation is facing?
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Who can apply for the work according to the advertisement Students who major in ______Who can apply for the work according to the advertisement Students who major in ______
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In the US, poll after poll has shown a majority in favour of animal experimentation, even without statements about its value. Why is opinion in Britain so different？ I think that there are two reasons.
The first is the success of antivivisection campaigners in lampooning animal research as outdated, intentionally cruel, "bad" science, which achieves nothing. All drugs and procedures developed with the help of animal tests are said to be dangerous. The occasional failure of animal testing to identify a dangerous drug is developed as an argument for abandoning safety tests involving animals altogether--with no mention of the terrible human suffering that this would cause. They say that "alternative" methods already exist for all animal experiments, but the fact is that the law specifically forbids animal use if there is any alternative.
The second reason is that scientists and doctors have failed to oppose such misrepresentation. In the early 1990s, animal rights campaigning in the US was met with much more forthright defense, not only by the major scientific societies, funding agencies and medical organizations, but also by the US government.
To be positive, there are many encouraging features of the New Scientist poll. Interestingly, the public seems to employ the same kind of utilitarian philosophy that underpins the law in Britain--weighing potential benefits against the species involved (thus, monkeys are more "valuable" than mice) and the likelihood of suffering.
Clearly, people in Britain do not recognize the essential link between animal research and testing and the medical treatments that they receive. Only 18 percent of those who had taken (or had a close family member who had taken a drug prescribed for a serious illness realized that the drug had been tested on animals, as all drugs are. Obviously, a large majority of those surveyed believe that they can happily benefit from medical treatment without taking advantage of animal research. No wonder so many people oppose it when asked the straight yes/no question.
The views of the public must be respected. But this poll tells us that, while they are open to persuasion, their reaction is based on misunderstanding. The responsibility for providing honest evidence for the public lies not just with those who use animals in their research, but with other scientists who depend on that work. It lies with the doctors who benefit from animal research, with the pharmaceuticals and biotech industries, and the medical charities and funding age, les whose work would be crippled without it. But most of all, responsibility rests with government, which should cultivate serious and transparent debate between those of different opinion, and provide the public--especially young people--with the honest evidence they need and deserve.
In the first sentence of Paragraph 3, "such misrepresentation" refers to ______.
A．the idea that other methods can be substituted for animal research
B．the claim that animal experiment is intentionally cruel
C．the belief that all drugs developed with animal tests are dangerous
D．the fact that scientists and medical organizations support animal experimentation
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The major forms of NTB are___.
A、quotas
B、voluntary export quotas
C、foreign exchange control
D、state monopoly
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The differences between male and female brain are the major causes of the scores between boys and girls.
A．正确
B．错误
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Whats the womans major in college？
A．Computer science.
B．Hotel management.
C．Foreign languages.
D．Travel management.
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There is no much difference between developped and developping countries in terms of the costs of major sports events（）
是
否
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Cancer is used generically for more than 100 different diseases, including malignant tumors of different sites such as breast, stomach, colon, lung and mouth.【1】The disease arises principally as a consequence of individual exposure to the substances that cause cancer in what individuals inhale, eat and drink, or are exposed to in their personal or work environment. Personal habits, such as tobacco use, dietary and physical activity patterns—well as occupational and environmental conditions—rather than genetic factors, play the major roles in the development of cancer.
Many of the chronic diseases risk and the diseases themselves overlap. In developed countries, cancer is the second-biggest cause of death after cardiovascular disease (CVD), and epidemiological evidence points to this trend emerging in the less developed world. This is particularly true in countries of "transition" or middle income countries such as in South America and Asia. Already more than half of all cancer cases occur in developing countries.
There are approximately 20 million people living with cancer at the moment; by 2020 there will an estimated 30 million. And the impact is far greater than the number of cases alone would suggest.【2】Regardless of prognosis, the initial diagnosis is of- ten perceived by patients as life-threatening, with over one-third of sufferers experiencing clinical anxiety and depression. Cancer can also be profoundly distressing as well as economically disruptive to patients' families. The clinical care of cancer patients is a costly element in public health budgets.
【3】Dietary factors are estimated to account for approximately 30% of cancers in Western countries, making diet second only to tobacco as a preventable cause of cancer. This proportion is thought to be about 20% in developing countries and is projected to grow. As developing countries become urbanized, patterns of cancer, particularly those most strongly associated with diet and physical activity, tend to shift towards the patterns of economically developed countries. Cancer rates also change as populations move between countries and adopt different dietary patterns.
The relative importance of cancers as a cause of death is increasing. The incidence of lung cancer and cancers of the colon and breast generally increases in parallel with economic development, as stomach cancer declines. Cancer is also strongly associated with social and economic status. Cancer risk factors are highest in groups with the least education. In addition, patients in the lower socioeconomic classes have consistently poorer survival rates than those in higher social class.
In recent years, substantial evidence has pointed to the link from overweight and obesity, to many types of cancer such as breast and kidney.【4】The composition of the diet is also important since fruit and vegetables may have a protective effect by decreasing the risk for some cancer types such as oral and gastric cancer.
Regular physical activity has also been seen to have a protective effect in reducing the risk of breast cancer. High intake of preserved meat or red meat might be associated with increased risk of colorectal cancer. Another aspect of diet clearly related to cancer risk is the high consumption of alcoholic beverages, which convincingly increase the risk of oral cavity, liver and breast cancers.
The wealth of knowledge that already exists about cancer risk factors provides obvious and ample scope for action to reduce the cancer burden of all countries. After tobacco, overweight and obesity seems to be the most important avoidable cause of cancer.
【5】Given that poor nutrition, physical inactivity, obesity tobacco and alcohol are risk factors common to other chronic diseases such as CVD, type 2 diabetes, and respiratory diseases, conducting a cancer prevention program withi
