单选题The document was {{U}}compiled{{/U}} by the Department of Health.

单选题Prolonging Human Life Prolonging human life has increased the size of the human population. Many people alive today would have died of childhood diseases if they had been born 100 years ago. Because more people live longer, there are more people around at any given time. In fact, it is a decrease in death rates, not an increase in birthrates, that has led to the population explosion. Prolonging human life has also increased the dependency load. In all societies, people who are disabled or too young or too old to work are dependent on the rest of society to provide for them. In hunting and gathering cultures, old people who could not keep up might be left behind to die. In times of famine, infants might be allowed to die because they could not survive if their parents starved, whereas if the parents survived they could have another child. In most contemporary societies, people feel a moral obligation to keep people alive whether they can work or not. We have a great many people today who live past the age at which they want to work or are able to work; we also have rules which require people to retire at a certain age. Unless these people were able to save money for their retirement, somebody else must support them. In the United States many retired people live on social security checks which are so little that they must live in near poverty. Older people have more illnesses than young or middle-aged people; unless they have wealth or private or government insurance, they must often "go on welfare" if they have a serious illness. When older people become senile or too weak and ill to care for themselves, they create grave problems for their families. In the past and in some traditional cultures, they would be cared for at home until they died. Today, with most members of a household working or in school, there is often no one at home who can care for a sick or weak person. To meet this need, a great many nursing homes and convalescent hospitals have been built. These are often profit-making organizations, although some are sponsored by religious and other nonprofit groups. While a few of these institutions are good, most of them are simply "dumping grounds" for the dying in which "care" is given by poorly paid, overworked, and underskilled personnel.

单选题 On British Newspapers Besides the daily newspapers, there are a number of Sunday newspapers in Britain. Many of them are connected with the "dailies", though not run by the same editor and his members. The Sunday papers are larger than the daily papers and usually contain more articles concerned with comment (评论) and general information rather than news. The national daily and Sun day papers have the largest circulation(发行) in the world. Of the Sunday papers, the Observer and the Sunday Times are the best known. It is a regrettable fact that the number of magazines of a literary or political nature has dropped down since the war. This has probably been caused by the ever-wider use of radio and television. The most successful magazines are those published for women. Their covers are designed to catch the eye, and they certainly succeed in doing so! They offer their readers articles on cookery (烹饪法), fashion, needlework, and many other matters of women interest. They also provide advice to those in love, and adventures with handsome heroes. Some women's magazines also include serious articles of more general interest. The visitor who looks at the magazines displayed in a large bookstall (书摊) which may be found in an important railway station will notice that there is a wide variety of technical or semitechnical(半专业的) books and magazines. There are magazines for the motorist, the farmer, the gardener, the nurse, and many others. There are many local and regional newspapers. It is common in Britain for a news agent(报刊经售人) to deliver (投递) the morning papers to his customers for a small extra payment, this service is usually performed by boys and girls who want to earn some pocket-money.

单选题Tom found damnably difficult, for three reasons.A. veryB. undeniableC. lessD. unchangeable

单选题In that last sentence. Davies set forth the national ethic of health care in his country: medicine is not a commodity to be sold to the highest bidder, but a right that must be distributed equitably (公平合理的) to one and all. In short, the Canadians have built a health - care system that neatly fits the Canadian character: ferociously egalitarian (平等主义的), but thrifty at the same time. According to the author, Canadians are.A. extremely egalitarian and thriftyB. extremely egalitarian but not thriftyC. not egalitarian at all but thriftyD. neither egalitarian nor thrifry

单选题Poor health and lack of money may both be to educational progress roadblocks. A. restraints B. stains C. scarcities D. barriers

单选题The Ebola virus transmits by contact with _______.

单选题Her father was a quiet man with graceful manners.

单选题This vaccine is egg - based. What if I'm allergic to eggs? You should avoid the vaccine. If you're in a high - risk group and you come down with the flu, see your doctor immediately. Antiviral medications, given within 24 to 48 hours of the onset of symptoms, can dramatically improve one's outcome. The vaccine should avoid application to a person whoA. is allergic to eggs.B. is in a high - risk group.C. has come down with the flu.D. has symptoms of the flu.

单选题There is been {{U}}competition{{/U}} between the two Motor car firms.

单选题The once barren hillsides are now good farmland.

单选题She was really frightfully {{U}}ugly{{/U}}.

单选题 Diseases of Agricultural Plants Plants, like animals, are subject to diseases of various kinds. It has been estimated that some 30,000 different diseases attack our economic plants; forty are known to attack com, and about as many attack wheat. The results of unchecked plant disease are all too obvious in countries which have marginal food supplies. The problem will soon be more widespread as the population of the world increases at its frightening rate. Even in countries which are now amply fed by their agricultural products there could soon be critical food shortages. It is easy to imagine the consequences of some disastrous attack on one of the major crops; the resulting famines could kill millions of people, and the resulting hardship on other millions could cause political upheavals disastrous to the order of the world. Some plants have relative immunity to a great many diseases, while others have a susceptibility to them. The tolerance of a particular plant changes as the growing conditions change. A blight may be but a local infection easily controlled; on the other hand it can attack particular plants in a whole region or nation. An example is the blight which killed virtually every chestnut tree in North America. Another is the famous potato blight in Ireland in the last century. As a result of that, it was estimated that one million people died of starvation and related ailments. Plant pathologists have made remarkable strides in identifying the pathogens of the various diseases. Bacteria may invade a plant through an infestation of insect parasites carrying the pathogen. A plant can also be inoculated by man. Other diseases might be caused by fungus which attacks the plant in the form of a mold or smut or rust. Frequently such a primary infection8 will weaken the plant so that a secondary infection may result from9 its lack of tolerance. The symptoms shown may cause an error in diagnosis, so that treatment may be directed toward bacteria which could be the result of a susceptibility caused by a primary virus infection.

单选题After his military defeat in 1865, Robert E. Lee entreated the people of the South to work for national harmony.

单选题Most Adults in US Have Low Risk of Heart Disease More than 80 percent of US adults have a less than 10-percent risk of developing heart disease in the next 10 years, according to a report in the Journal of the American College of Cardiology. Just 3 percent have a risk that exceeds 20 percent. "I hope that these numbers will give physicians, researchers, health policy analysts, and others a better idea of how coronary heart disease is distributed in the US population, " lead author Dr. Earl S. Ford, from the Centers for Disease Control and Prevention in Atlanta, said in a statement. The findings are based on analysis of data from 13,769 subjects, between 20 and 79 years of age, who participated in the Third National Health and Nutrition Examination Survey from 1988 to 1994. Overall, 82 percent of adults had a risk of less than 10 percent, 15 percent had a risk that fell between 10 to 20 percent, and 3 percent had a risk above 20 percent. The proportion of subjects in the highest risk group increased with advancing age, and men were more likely than women to be in this group. By contrast, race or ethnicity had little effect on risk distributions. Although the report suggests that most adults have a low 10-year risk of heart disease, a large proportion have a high or immediate risk, Dr. Daniel S. Berman, from Cedars-Sinai Medical Center in Los Angeles, and Dr. Nathan D. Wong, from the University of California at Irvine, note in a related editorial. Aggressive treatment measures and public health strategies are needed to shift the overall population risk downward, they add.

单选题But inthe end he approved of our proposal.

单选题Appealing to these expectations, Obama told Americans what they want to hear. People with insurance won't be required to change plans or doctors; they'll enjoy more security because insurance companies won't be permitted to deny coverage based on "pre - existing conditions" or cancel policies when people get sick. All Americans will be required to have insurance, but those who can't afford it will get subsidies. As for costs, not to worry. "Reducing the waste and inefficiency in Medicare and Medicaid will pay for most of is plan. " Obama said. He pledged to" not sign a plan that adds one dime to our [budget] deficits- either now or in the future. "If you believe Obama, what's not to like? Universal insurance. Continued choice. Lower costs. The problem is that you can't entirely believe Obama. If he were candid - if we were candid - we'd all acknowledge that the goals of our ideal health - care system collide. Perhaps we can have any two, but not all three. If we want universal insurance and unlimited patient and doctor choice, costs will continually spiral upward, because there will be no reason or no one to stop them. We have a variant of that today -a cost -plus system, with widespread insurance and open -ended reimbursement. Higher costs push up premiums and taxes. That's one reason health spending has gone from 5 percent of gross domestic product in 1960 to 16 percent in 2007. (Other reasons: new technologies, rising incomes. ) But controlling spending requires limits on patients and doctors. What is the author's attitude towards Obama's reform plan on health- care?A. Welcome.B. Critical.C. Indifferent.D. Approvin

单选题He has exhibited symptoms of anxiety and overwhelming worry.

单选题She stood there, crying and {{U}}trembling{{/U}} with fear.

单选题HIV can be safely used to cure cancer only if the deadly genes have been removed.