单选题A controversial decision on whether choice cuts of steak and cartons of milk produced from cloned animals are suitable for the dinner table is now long overdue. Hundreds of pigs, cows and other animals created with the help of cloning are living 1 farms across the United States and 2 the forthcoming ruling will directly 3 American consumers, British holidaymakers may also 4 themselves at the forefront of a food revolution that many commentators expect will 5 arrive here. 6 the birth of Dolly the sheep-the first mammal cloned from an adult cell--there were extreme predictions of herds of genetically 7 bulls and pastures 8 with cloned dairy cows. That double 9 of the past decade has not yet been realized 10 clones have become a familiar sight at agricultural fairs in America, where producers of 11 pigs and cattle have been among the first to 12 cloning, which offers a way to keep 13 traits without inbreeding problems caused by traditional methods. Clones of rare and elite animals, including sheep, goats, and rabbits, 14 a way to improve animal healthy, 15 the nutritional value of meat and milk, and breed animals immune 16 diseases or better suited for developing countries. The safety of cloned 17 has been under examination by various bodies. Three years ago the US National Academy of Science concluded that 18 available data indicated that cloning met animal welfare and food safety considerations, more information was needed. 19 scientific evidence suggests that there is little 20 for alarm, at least on food-safety grounds.

单选题The "explosive conflict" in the first paragraph refers to

单选题The structured-inquiry process can be useful for

单选题The phrase "On the downside" (Line 3, Paragraph 4) denotes

单选题The government has made great effort to

单选题{{B}}Text 3{{/B}} There were two widely divergent influences on the early development of statistical methods. Statistics had a mother who was dedicated to keeping orderly records of governmental units (state and statistics come from the same Latin root, status) and a gentlemanly gambling father who relied on mathematics to increase his skill at playing the odds in games of chance. The influence of the mother on the offspring, statistics, is represented by counting, measuring, describing, tabulating, ordering, and the taking of censuses—all of which led to modem descriptive statistics. From the influence of the father came modem inferentical statistics, which is based squarely on theories of probability. Descriptive statistics involves tabulating, depicting, and describing collections of data. These data may be either quantitative, such as measures of height, intelligence, or grade level—variables that are characterized by an underlying continuum or the data may represent qualitative variable, such as sex, college major, or personality type. Large masses of data must generally undergo a process of summarization or reduction before they are comprehensible. Descriptive statistics is tool for describing or summarizing or reducing to comprehensible form the properties of an otherwise unwieldy mass of data. Inferential statistics is a formalized body of methods for solving another class of problems that present great difficulties for the unaided human mind. This general class of problems characteristically involves attempts to make predictions using a sample of observations. For example, a school superintendent wishes to determine the proportion of children in a large school system who come to school without breakfast, have been vaccinated for flu, or whatever. Having a little knowledge of statistics, the superintendent would know that it is unnecessary and inefficient to question each child; the proportion for the entire district could be estimated fairly accurately from a sample of as few as 100 children. Thus, the purpose of inferential statistics is to predict or estimate characteristics of a population from knowledge of the characteristics of only a sample of the population.

单选题According to the passage, which of the following is NOT true of women in pattern Ⅲ families?

单选题We can learn from the passage that the name of the 2003UB313

单选题Health implies. more than physical fitness. It also implies mental and emotional wellbeing. An angry, frustrated, emotionally (1) person in good physical condition is not (2) healthy. Mental health, therefore, has much to do (3) how a person copes with the world as it exists. Many of the factors that (4) physical health also affect mental and emotional well-being. Having a good self-image means that people have positive (5) pictures and good positive feelings about themselves, about what they are capable (6) , and about the roles they play. People with good self-images like themselves, and they are (7) like others. Having a good self- image is based (8) a realistic (9) of one's own worth and value and capabilities. Stress is an unavoidable, necessary, and potentially healthful (10) of our society. People of all ages (11) stress. Children begin to (12) stress during prenatal development and during childbirth. Examples of stress-inducing (13) in the life of a young person are death of a pet, pressure to (14) academically, the divorce of parents, or joining a new youth group. The different ways in which individuals (15) to stress may bring healthful or unhealthy results. One person experiencing a great deal of stress may function exceptionally well (16) another may be unable to function at all. If stressful situations are continually encountered, the individual's physical, social, and mental health are eventually affected. Satisfying social relations are vital to (17) mental and emotional health. It is believed that in order to (18) , develop, and maintain effective and fulfilling social relationships people must (19) the ability to know and trust each other, understand each other, influence, and help each other. They must also be capable of (20) conflicts in a constructive way.

单选题The linguistic relativity principle is back in fashion. This principle, often known informally as the Sapir-Whorf hypothesis, states 1 that the way in which different languages encode various grammatical properties determines the way their speakers 2 the world. In laymen"s terms, if a language has no word for a given concept, then its speakers will not be able to 3 the concept. The Sapir-Whorf hypothesis was eventually discredited on the strength of obvious 4 evidence. 5 English, unlike most modern European languages, does not 6 grammatical gender to nouns (as, for example, determining that an inanimate object like a bridge be masculine or feminine), most English speakers have no trouble 7 the notion of 8 gender when it is explained to them. 9 , some linguists are reconsidering that, at least in some conceptual domains, the grammars and lexicons of languages may indeed 10 the conceptual universes of their speaker communities. As the eminent linguist Roman Jacobson 11 it, "languages differ 12 in what they must convey and not in what they may convey." That is to say, whereas in English the word "neighbor" is gender neutral, it is not in either French or German. 13 , if an English speaker talks about spending time with his neighbor, he is not 14 by the grammar to reveal whether the neighbor was male or female. But in French or German he will 15 supply this information, since the pairs voisin/ voisine and Nachbar/Nachbarin reveal whether the neighbor was masculine or feminine, respectively. But can the limitations of grammar also 16 limitations on the ability to conceptualize? The fact that languages constantly 17 their grammar and invent new words while 18 old ones is 19 enough that human thought is in 20 degree limited by language.

单选题"The news hit the British High Commission in Nairobi at nine-thirty on a Monday morning. Sandy Woodrow took it like a bullet, jaw rigid, chest out, smack through his divided English heart." Crikey. So that's how you take a bullet. Poor old Sandy. His English heart must be really divided now. This deliriously hardboiled opening sets the tone for what's to come. White mischief? Pshaw! White plague, more like it. Sandy Woodrow is head of chancery at the British High Commission in Nairobi. The news that neatly subdivides his heart as the novel opens is the death of a young, beautiful and idealistic lawyer turned aid worker named Tessa Quayle. Tessa has been murdered for learning too much about the dishonest practices of a large pharmaceutical company operating in Africa. Her body is found at Lake Turkana, in northern Kenya near the border with Sudan. Tessa's husband. Justin, is also a British diplomat stationed in Nairobi. Until now Justin has been an obedient civil servant, content to toe the official line—in short, a hard worker. But all that changes in the aftermath of his wife's murder. Full of righteous anger, he resolves to get to the bottom of it, come what may. "The Constant Gardener" has got plenty of tense moments and sudden twists and comes completely with shadowy figures lurking in the bush. There is a familiar tone of gentlemanly world- weariness to it all, which should keep Mr. le Carre's fans happy. But the novel is also an impassioned attack on the corruption which allows Africa to be used as a sort of laboratory for the testing of new medicines. Elsewhere, Mr. le Carte has denounced the "corporate cam, hypocrisy, corruption and greed" of the pharmaceutical industry. This position is excitingly dramatized in his book, even if the abuses he rails against are not exactly breaking news. In other respects "The Constant Gardener" is less satisfactory. Mr. le Carte can't seem to make up his mind whether he's writing a thriller or an expose. Ina recent article for the New Yorker he described his creative process as "a kind of deliberately twisted journalism, where nothing is quite what it is" and where any encounter may be "freely recast for its dramatic possibilities". Such is the method employed in "The Constant Gardener", whose heroine. Mr. le Carte says, was inspired by an old friend of his. One or two prominent real-life Kenyan politicians are mentioned often enough to become, in effect. "characters" in the story. And in a note at the end of the book Mr. le Cane thanks the various diplomats, doctors, pharmaceutical experts and old Africa hands who gave him advice and assistance, though in the same breath he insists that the staff of the British mission in Nairobi are no doubt all jolly good eggs who bear no resemblance whatsoever to the heartless scoundrels in his story. There's nothing wrong with a bit of artistic license, Of course. But Mr. le Carre's equivocation about the novel's relation to fact undermines its effectiveness as a work of social criticism, which is pretty clearly what it aspires to be. "The Constant Gardener" is a cracking thriller but a flawed exploration of a complicated set of political issues.