单选题Mary finally accepted Bruce as her life-long companion.

单选题Peter is experiencing a difficult time in his life.A. going intoB. going out ofC. going overD. going through

单选题DNA testing DNA testing reveals the genes of each individual person. Since the early twentieth century scientists have known that all human characteristics are contained in a person"s genes and are passed from parents to children. Genes work as a chemical instruction manual for each part and each function of the body. Their basic chemical element is called DNA, a copy of which can be found in every cell. The existence of genes and the chemical structure of DNA were understood by the mid-1900s, but scientists have only recently been able to identify a person from just a drop of blood or a single hair. One of the most important uses of DNA testing is in criminal investigation. The very first use of DNA testing in a criminal case was in 1985 in Great Britain, when a man confessed to killing a young woman in the English countryside. Because police had found samples of the killer"s DNA at the scene of the crime, a biologist suggested that it might be possible to compare that DNA to some from the confessor"s blood. To everyone"s surprise, the tests showed that he was not the killer. Nor was he guilty of a similar murder that had happened some time earlier. At that point he admitted that he had confessed to the crimes out of fear and police pressure. The police then asked 5, 000 local men for samples of their blood, and DNA testing revealed that one of them was the real murderer, so the first man was set free. In 1992, two law professors, Peter Neufeld and Barry Scheck, decided to use DNA evidence to help set free such mistakenly convicted prisoners. With the help of their students, they created a not-for-profit organization called the Innocence Project. Most of their clients are poor men, many from racial and ethnic minorities. In fact, studies have shown that U.S. judges and juries are often influenced by racial and ethnic background, and that people from minority groups are more likely to be convicted. Some of these men had been sentenced to death, a form of punishment used in thirty eight states out of fifty (as of 2006). For most of these prisoners, their only hope was another trial in which DNA testing could be used to prove their innocence. Between 1992 and 2006, the Innocence Project helped free 100 men. Some of these prisoners had been in jail for ten, twenty years or more for crimes they did not commit. However, the goal of the Innocence Project is not simply to set free those who are wrongfully in jail. They also hope to bring about real changes in the criminal justice system. Illinois in the late 1990s, a group of journalism students at Northwestern University were able to bring about such a change in that state. They began investigating some Illinois prisoners who claimed to be innocent. Through DNA testing, the students were able to prove that in fact the prisoners were not guilty of the crimes they had been accused of. Thirteen of these men were set flee, and in 2000, Governor Ryan of Illinois decided to stop carrying out death sentences until further study could be made of the prisoners" cases. The use of DNA in criminal cases is still being debated around the world. Some fear that governments will one day keep records of everyone"s DNA, which could put limits on the privacy and freedom of citizens. Other people mistrust the science of DNA testing and think that lawyers use it to get their clients free whether or not they are guilty. But for those whose innocence has been proven and who are now free men, DNA testing has meant nothing less than a return to life. And with the careful use of DNA testing, no innocent person should ever be convicted again.

单选题We will abide by their decision.

单选题The writer cites the Duomo in the last paragraph as an example to illustrate that

单选题The outlook from the top of the mountain is breathtaking. A. view B. sight C. look D. point

单选题The Spanish, French, Dutch, and English all vied for North American territory.

单选题UK Swine Flu Vaccine" Approved" The European drugs regulator has given the go - ahead for one of the UK's swine flu vaccines. An expert committee agreed that Pandemrix, made by GlaxoSmithKline, can be used in adults and children over six -month old and pregnant women. The UK has bought 60 million doses of the vaccine. In addition, there are contracts for an as yet unapproved vaccine, Celvapan, produced by Baxter. It means the UK has provision for up to 132 million doses—enough for every person in the country. The number of new cases of swine flu in England has almost doubled over the last seven days to 9,000 ,official figures show. In Scotland, the new weekly figures showed a slight increase from 6,180 to 7,034. Across the UK there have been 82 deaths. Although the figures are rising, they are as yet far short of the 100,000 cases a week seen in July. But they hope to begin a vaccination programme sometime next month. High - risk individuals and front - line National Heath Service staff have been prioritised for the vaccine. Those eligible include anyone aged between six months and 65 years who usually gets the seasonal flu jab because of a chronic illness such as asthma, pregnant women, and people who live with those whose immune systems are compromised, such as cancer patients or people with HIV/AIDS. Concerns have been raised about the safety of the vaccines given the speed of the approval process. Both vaccines the Agency have recommended for licensing contain an adjuvant - a chemical which boosts the immune response—but this too has been tested in thousands of people, it said. Further clinical trials are being done and Pandemrix is being tested in 9,000 children, elderly and healthy adult volunteers. Data submitted to the regulator by GSK suggests the vaccine is generally well tolerated, with the most commonly reported side—effects being headache ,joint pain ,muscle pain, reactions at the site of the injection( such as pain and redness), fever and fatigue. UK regulators have set up a special portal on the website for reporting any problems with swine flu medicines and vaccines when they begin to be used.

单选题Water From the beginning, water has furnished (提) man with a source of food and a highway to travel upon. The first civilizations arose (51) water was a dominant element in the environment, a challenge (52) man's ingenuity (聪敏，才智) . The Egyptians invented the 365-day calendar in response to the Nile's annual flooding. The Babylonians (巴比伦人) , (53) were among the most famous law-makers in ancient times, invented laws (54) water usage. Water inspired the Chinese to build a 1,000- (55) canal, a complex system which, after nearly 2,500 years, remains still practically (56) and still commands the astonishment of engineers. But (57) never found complete solutions to their water problems. The Yellow River is also known as "China's Sorrow"; it is so unpredictable and dangerous (58) in a single flood it has caused a million (59) . Floods slowed the great (60) of the Indus River Valley, and inadequate drainage ruined (61) of its land. Today water dominates man (62) it always has done. Its presence continues to (63) the location of his homes and cities; its violent variability (多变) can (64) man or his herds or his crops; its routes links him (65) his fellows; its immense value may add to already dangerous political conflicts. There are many examples of this in our own time.

单选题The room was Ufurnished/U with the simplest essentials, a bed, a chair, and a table.

单选题What Is the Coolest Gas in the Universe? What is the coldest air temperature ever recorded on the Earth? Where was this low temperature recorded? The coldest recorded temperature on Earth was -91℃ which (51) in Antarctica in 1983. We encounter an interesting situation when we discuss temperatures in (52) . Temperatures in Earth orbit actually range from about +120~C to -120~C. The temperature depends upon (53) you are in direct sunlight or shade. Obviously, -120℃ is colder than our body can safely endure. Thank NASA science for well-designed space (54) that protect astronauts from these temperature extremes. The space temperatures just discussed affect only our area of the solar (55) . Obviously, it is hotter closer to the Sun and colder as we travel away from the Sun. Astronomers estimate temperatures at Pluto are about -210℃. How cold is the lowest estimated temperature in the entire universe? Again, it depends upon your (56) . We are taught it is supposedly (57) to have a temperature below absolute zero, which is -273℃, at which atoms do not move. Two scientists, whose names are Cornell and Wieman, have successfully cooled down a gas temperature barely (58) absolute zero. They won a Nobel Prize in Physics in 2001 for their work not a discovery in this car. Why is the two scientists' work so important to science? In the 1920s, Satyendra Nath Bose was studying an interesting (59) about particles we now call photons. Bose had trouble (60) other scientists to believe (61) he contacted Albert Einstein. Einstein's calculations helped him theorize (62) behave as Bose thought but only at very cold temperatures. Scientists have also discovered that (63) atoms can help them make the world's atomic clocks even more accurate. These clocks are so accurate today they would only lose one second (64) six million years! Such accuracy will help us travel in space because distance is velocity times time (d=v×t). With the long distances involved in space (65) to know time as accurately as possible to get accurate distance.

单选题There was a Jewish trader, who had come by one of Strickland's pictures in a(n) {{U}}peculiar{{/U}} way.

单选题She was one of the leading writers of her day.

单选题The Family The structure of a family takes different forms around the word and even in the same society. The family's form changes as it adapts to changing social and economic influences. Until recently, the most common form in North America was the nuclear family, consisting of a married couple with their minor children. The nuclear family is an independent unit. It must be prepared to fend for itself. Individual family members strongly depend on one another. There is little help from outside the family in emergencies. Elderly relatives of a nuclear family are cared for only if it is possible for the family to do so. In North America, the elderly often do not live with the family； they live in retirement communities and nursing homes. There are many parallels between the nuclear family in industrial societies, such as North America, and of families in societies such as that of the Inuits, who live in harsh environments. The nuclear family structure is well adapted to a life of mobility. In harsh conditions, mobility allows the family to hunt for food. For North Americans, the hunt for jobs and improved social status also requires mobility. The nuclear family was not always the North American standard. In a more agrarian time, the small nuclear family was usually part of a larger extended family. This might have included grandparents, mother and father, brothers and sisters, uncles, aunts, and cousins. In North America today, there is a dramatic rise in the number of single-parent households. Twice as many households in the United States are headed by divorced, separated, or nevermarried individuals as are comprised of nuclear families. The structure of the family, not just in North America, but throughout the world, continues to change as it adapts to changing conditions.

单选题They Say Ireland's the Best Ireland is the best place in the world to live for 2005, according to a life quality ranking that appeared in Britain's Economist magazine last week. The ambitious attempt to compare happiness levels around the world is based on the principle that wealth is not the only measure of human satisfaction and well-being. The index of 111 countries uses data on incomes, health, unemployment, climate, political stability, job security, gender equality as well as what the magazine calls "freedom, family and community life". Despite the bad weather, troubled health service, traffic congestion (拥挤), gender inequality, and the high cost of living, Ireland scored an impressive 8.33 points out of 10. That put it well ahead of second-place Switzerland, which managed 8.07. Zimbabwe, troubled by political insecurity and hunger, is rated the gloomiest (最差的), picking up only 3. 89 points. "Although rising incomes and increased individual choices are highly valued," the report said, "some of the factors associated with modernization such as the breakdown (崩溃) in traditional institutions and family values in part take away from a positive impact. " "Ireland wins because it successfully combines the most desirable elements of the new with the preservation of certain warm elements of the old, such as stable family and community life. " The magazine admitted measuring quality of life is not a straightforward thing to do, and that its findings would have their critics. No. 2 on the list is Switzerland. The other nations in the top 10 are Norway, Luxembourg, Sweden, Australia, Iceland, Italy, Denmark and Spain. The U. K. is positioned at No. 29, a much lower position chiefly because of the social and family breakdown recorded in official statistics. The U.S., which has the second highest per capita GDP (人均国内生产总值) after Luxembourg, took the 13th place in the survey. China was in the lower half of the league at 60th.

单选题The idea of" common schools" that adopt the same curriculum and standards isn't new. It first arose in the 1840s, largely owing to the influence of the reformer Horace Mann. But the U. S. Constitution leave public education to the states, and the states devolve much of the authority to local school districts, of which there are now more than 13,000 in the U. S. The Federal Government Drovides less than 9% of the funding for K - 12 schools. That is why it has proved impossible thus far to create common curriculum standards nationwide. In 1989, President George H. W. Bush summoned the nation's governors to Charlottesville, Va. ,to attempt a standards -based approach to school reform. The result was only a vague endorsement of" voluntary national standards. "which never gained much traction. In 1994 ,President Bill Clinton got federal money for standards -based reform, but the effort remained in the hands of the states, leading to a wildly varying hodgepodge of expectations for -as well as ideological battles over- math and English curriculums. "Common schools" refer toA. schools that share funding and teaching facilities.B. schools that share the same faculty staff.C. schools that accept students of all ages.D. schools that adopt the same curriculum and standards.

单选题I don't think Mr. Watson will come here again today. Please give the ticket to ______ comes here first.A. whomeverB. whomC. whoD. whoever

单选题It can be inferred that about students graduating consider join the army.

单选题We would much {{U}}appreciate{{/U}} it if you could do us a favour.

单选题Why can't you stop your {{U}}eternal{{/U}} complaining?