你可能感兴趣的试题

A．Diners spent a much longer time at meals served with alcohol than they did at those served without alcohol.
B．The meals eaten later in the day tended to be larger than those eaten earlier in the day, and later meals were more likely to include alcohol.
C．People eat more when there are more people present at the meal, and more people tended to be present at meals served with alcohol than at meals served without alcohol.
D．The meals that were most carefully prepared and most attractively served tended to be those at which alcoholic beverages were consumed.
E．At meals that included alcohol, relatively more of the total calories consumed came from carbohydrates and relatively fewer of them came from fats and proteins.

A．The term manic-depressive refers to a wider range of mentally ill patients in Great Britain than it does in the United States.
B．The admission rate in the United States includes those individuals who visit clinics for the first time as well as those who are admitted directly to hospitals.
C．A small percentage of patients diagnosed as manic-depressive in Great Britain are admitted to private nursing homes rather than hospitals.
D．The variety of training institutions in psychology in the United States is greater than in Great Britain, reflecting the variety of schools of psychology that have developed in the United States.
E．Seeking professional assistance for mental health problems no longer carries a social stigma in the United States, as it once did.

A．The banks have reassessed the income potential of the completed project and have concluded that total income general would be less than total interest due on the old plus the needed new loans.
B．The banks have identified several other projects that offer faster repayment of the principal if loans are approved now to get those projects started.
C．The banks had agreed with the borrowers that the construction loans would be secured by the completed project.
D．The cost overruns were largely due to unforeseeable problems that arose in the most difficult phase of the construction work.
E．The project stimulated the development and refinement of several new construction techniques, which will make it easier and cheaper to carry out similar projects in the future.

A．The Pazyryk tombs were all robbed during ancient times, but breakage of the tombs’ seals allowed the seepage of water, which soon froze permanently, thereby preserving the tombs’ remaining artifacts.
B．The Pazyryk Valley, surrounded by extremely high mountains, has a distinctive yearly pattern of rainfall, and so trees growing in the Pazyryk Valley have annual rings that are quite distinct from trees growing in nearby valleys.
C．Each log in the Pazyryk tombs has among its rings a distinctive sequence of twelve annual rings representing six drought years followed by three rainy years and three more drought years.
D．The archaeologists determined that the youngest tree used in any of the tombs was 90 years old and that the oldest tree was 450 years old.
E．All of the Pazyryk tombs contained cultural artifacts that can be dated to roughly 2300 years ago.

A．Fewer food products are packaged in nonrecyclable plasticstoday than were so packaged a year ago.
B．The new ordinance affects only plastic food packaging and not other products packaged in plastic, many of which are sold in Gorenton.
C．Grocery and other stores in nearby suburban areas patronized by many Gorenton residents are unaffected by the new ordinance.
D．Many food products formerly packaged in nonrecyclable plastics are now specially packaged in recyclable plastic before being shipped so that they can be sold in Gorenton.
E．The total amount of both Gorenton’s trash and its plastic waste grew considerably over the past year.

A.Major episodes of extinction can result from widespread environmental disturbances that affect numerous different species.
B.Certain extinction episodes selectively affect organisms with particular sets of characteristics unique to their species.
C.Some species become extinct because of accumulated gradual changes in their local environments.
D.In geologically recent times, for which there is no fossil record, human intervention has changed the pattern of extinction.
E.Species that are widely dispersed are the least likely to become extinct.

A．When a pottery piece from any batch was broken during finishing, Stone Age people sometimes deliberately smashed the rest of that batch, perhaps to avert bad luck.
B．The composition of clay, which affects the durability of any pottery made from it, varies greatly from one area of the world to another.
C．Pottery was invented in the Stone Age, and techniques for making pottery were mastered well before those required for delicate ceramic work.
D．Stone Age potters drafted pottery figurines as frequently as they did ceramic pieces.
E．Many Stone Age rituals involved the destruction of a pottery figurine, perhaps as a sacrifice to the gods.

A．The neurons of the brain react less when a subject is trying to recognize patterns than when the subject is doing other kinds of reasoning.
B．Those who performed best in the experiment experienced more satisfaction when working with abstract patterns than did those who performed less well.
C．People who are better at abstract pattern recognition have more energy-efficient neural connections.
D．The energy expenditure of the subjects brains increases when a design that completes the initially recognized pattern is determined.
E．The task of completing a given design is more capable performed by athletes, whose energy expenditure is lower when they are at rest than is that of the general population.

A．The surveys questioned people who regularly watch prime-time television, and an innovative weekly primetime television series called "Wonders of Science" had been steadily winning viewers since its widely seen premiere in January 1992.
B．The surveys questioned college-educated adults, and a report called "The State of the Nation’s Schools." published in June 1992, noted an increase in students’ interest in science courses since 1982.
C．The surveys were conducted in a suburban shopping area near a company that ceased operation in April 1992 as a result of lawsuits arising from unexpected toxic effects of the company’s products.
D．Both survey forms were mailed to equally large samples of the population, after returning the 1991 survey forms, respondents were sent discount coupons for food products, and after returning the 1992 survey forms, respondents were sent a pamphlet on recycling.
E．The surveys questioned first-year college students across the country, and the people who did the questioning were all research scientists.

A．Many more desktop computers are sold each year in the United States market than are sold in the Swedish market.
B．The manufacturer does not want its competitors to become aware of the means by which the company has achieved this advance in technology.
C．Most business and scientific purchasers of desktop computers expect to replace such equipment eventually as better technology becomes available on the market.
D．An emphasis on the comparative safety of the new screen would call into question the safety of the many screens the manufacturer has already sold in the United States.
E．Concern has been expressed in the United States over the health effects of the large electromagnetic fields surrounding electric power lines.

A．Prices for palm fruit fell between 1980 and 1984 following the rise in production and a concurrent fall in demand.
B．Imported trees are often more productive than native trees because the imported ones have left behind their pests and diseases in their native lands.
C．Rapid increases in productivity tend to deplete trees of nutrients needed for the development of the fruit-producing female flowers.
D．The weevil population in Asia remained at approximately the same level between 1980 and 1984.
E．Prior to 1980 another species of insect pollinated the Asian palm trees, but not as efficiently as the species of weevil that was introduced in 1980.

A．The type of music most popular for use in commercials has changed from a type that requires a large number of instruments to a type that requires very few instruments.
B．There has been an increase in the number of commercials that use only the spoken word and sound effects, rather than musical accompaniment.
C．There has been an increase in the number of commercials that use a synthesizer, an instrument on which one musician can reproduce the sound of many musicians playing together.
D．There has been an increase in the number of commercials that use prerecorded music as their only source of music.
E．There has been an increase in the number of commercials that use musicians just starting in the music industry rather than musicians experienced in accompanying commercials.

A．the value of a car that is bought new declines much more rapidly than does the value of a car that is bought used
B．after someone has bought a car, it might be several years before that person next buys a car
C．a decline in the proportion of car buyers who buy new cars must necessarily mean that the proportion who buy used cars has increased
D．the relative increase in used-car sales might be explained by the decisions of only a small proportion of all car buyers
E．the change in the average price paid for a new car could result solely from more people’s rejecting inexpensive new cars in favor of used cars

A．Sales of higher-priced houses were unaffected by the sales drop because their purchasers have fewer constraints limiting the total amount they pay.
B．Labor agreements of builders with construction unions are not due to expire until the next January.
C．The prices of new houses have been rising slowly over the past three years because there is an increasing shortage of housing.
D．There was a greater amount of moderate-priced housing available for resale by owners during January than in the preceding three months.
E．Interest rates for home mortgages are expected to rise sharply later in the year if predictions of increased business activity in general prove to be accurate.

A．the minimum acceleration in physical growth that would indicate adolescence might differ according to species
B．the fossil record, though steadily expanding, will always remain incomplete
C．detecting the adolescent growth spurt requires measurements on the same individual at different ages
D．complete skeletons of extinct hominids are extremely rare
E．human beings might be the first species to benefit from the survival advantages, if any, conferred by adolescence

A．During periods of economic slowdown, two-year community colleges are more likely than four-year colleges to prepare their students for the jobs that are still available.
B．During periods of economic prosperity, graduates of two-year community colleges often continue their studies at four-year colleges.
C．Tuition at most two-year community colleges is a fraction of that at four-year colleges.
D．Two-year community colleges devote more resources than do other colleges to attracting those students especially affected by economic slowdowns.
E．Students at two-year community colleges, but not those at most four-year colleges, can control the cost of their studies by choosing the number of courses they take each term.

A．Foreign investors usually buy United States stocks only when prices are low.
B．The number of stock buyers in 1987 remained about the same as it had been the preceding year.
C．For some portion of 1987, the volume of stocks traded was higher than the average for that year.
D．The greater the volume of stocks traded in a given year, the lower the average price per share on the United States stock market for that year.
E．The volume of stocks traded rises and falls in predictable cycles.

A．County businesses can operate only with a permit, and during each day of processing they lose any income they might have generated.
B．The permit office considers that processing begins after the interview, whereas the applicants consider that processing begins when they have submitted an application.
C．There are fewer applicants for permits in the county since the permit office instituted the changes.
D．Computer-readable forms have reduced the time necessary for the permit office to verity the statements made on applications and have thus reduced the amount of time an interview takes.
E．The format of the application has not changed since the permit office began recording applications on the computer.

A．The shape of compact cars makes it easy for a tailgater to see far enough ahead around such cars to minimize the chances of a rear-end collision.
B．Middle-sized cars, owned by families with children and pets, are likely to have bumper stickers that are so interesting to read that tailgaters stay behind such cars longer.
C．Compact cars sometimes have superior engines that allow them to pass middle-sized cars on the highway easily.
D．The percentage of cars on the highway that are middlesized has been steadily decreasing over the last decade.
E．Compact cars are often driven by fast drivers.

A．Demand for operator-assisted calls is increasing dramatically.
B．The new electronic operator system, though it has been tested, is expected to require significant adjustments before it can become fully operational.
C．The operators union would be quick to strike the companies involved if operators were dismissed during the current contract period.
D．In one regional trial of the electronic system, virtually all consumers, given a choice, preferred a human operator to an electronic one.
E．The new electronic operator system will complete operator-assisted calls twice as fast as human operator can.

A．Tenants prefer low-quality accommodations with rent control to high-quality accommodations without it.
B．Rent control makes it very difficult for landlords to achieve reasonable returns on any investments in maintenance or in new construction.
C．Rent control is a common practice even though it does nothing to alleviate shortages in rental housing.
D．Rent control is generally introduced for political reasons and it takes political action to have it lifted again.
E．Tenants prefer rent control to the alternative of receiving direct government subsidies toward rents they cannot afford.

A．A significantly larger number of people eat in restaurants than attend catered banquets in any given time period.
B．Catering establishments know how many people they expect to serve, and therefore are less likely than restaurants to have, and serve, leftover food, a major source of food poisoning.
C．Many restaurants provide catering services for banquets in addition to serving individual meals.
D．The number of reported food-poisoning cases at catered banquets is unrelated to whether the meal is served on the caterer’s or the client’s premises.
E．People are unlikely to make a connection between a meal they have eaten and a subsequent illness unless the illness strikes a group who are in communication with one another.

A．there are usually no figures comparing how much of two different currencies must be spent in order to purchase a given quantity of goods and services
B．wage levels for the same job vary greatly from country to country, depending on cultural as well as on purely economic factors
C．these figures must be calculated by dividing the gross national product of a country by the size of its population
D．comparative access to goods and services is only one of several factors relevant in determining quality of life
E．the wealth, and hence the standard of living, of a country’s citizens is very closely related to their income

A．A given volume of air in a freezer requires much more energy to be maintained at a temperature below freezing than does an identical volume of frozen food.
B．The more often a freezer’s door is opened, the more energy is required to maintain that freezer’s normal temperature.
C．When unfrozen foods are placed in a freezer, the average temperature of a given volume of air inside that freezer rises temporarily.
D．A person who normally maintains a half-empty freezer can cut energy costs considerably by using a freezer that is 50 percent smaller.
E．An electric freezer can operate efficiently only if chilled air is free to circulate within the freezing compartment.

A．The possibility is left open that the statistics for manufacturer’s share of revenues come from a different source than the other statistics.
B．No matter what changes the automobile industry’s overall revenues undergo, the total of all shares of these revenues must be 100 percent.
C．No explanation is given for why the revenue shares of different sectors of the industry changed.
D．Manufacturers and parts companies depend for their revenue on dealers’ success in selling cars.
E．Revenues are an important factor but are not the only factor in determining profits.

A．In order to supplement their incomes, a small percentage of workers in other sectors of the economy take servicesector jobs as sell.
B．New service-sector firms have arisen to fill the need for day care for children, a need that was created by the increasing number of families in which both parents are employed.
C．More part-time than full-time jobs have been created through the application of new technologies to traditional occupations.
D．Manufacturing enterprises and other nonservice firms often operate twenty-four hours a day, seven days a week.
E．The largest and fastest-growing segment of the service sector caters to leisure activities pursued outside the standard nine-to-five weekday schedule.

A．Ⅰ only.
B．Ⅱ only.
C．Ⅲ only.
D．Ⅰ and Ⅱ only.
E．Ⅱ and Ⅲ only.

A．With private grazing land, both the costs and the benefits of overuse fall to the individual user.
B．The cost in reduced land quality that is attributable to any individual user is less easily measured with common land than it is with private land.
C．An individual who overuses common grazing land might be able to achieve higher returns than other users can, with the result that he or she would obtain a competitive advantage.
D．If one user of common land overuses it even slightly, the other users are likely to do so even more, with the consequence that the costs to each user outweigh the benefits.
E．There are more acres of grazing land held privately than there are held in common.

A．During times of inflation consumers save more money than they do in noninflationary periods.
B．There is usually a lag between the leading economic indicators’ first signaling the onset of an inflationary period and consumers’ recognition of its onset.
C．No generalization that describes human behavior will be true of every type of human behavior.
D．If significant numbers of consumers are unable to make purchases, prices will eventually fall but salaries will not be directly affected.
E．Consumers’ purchasing power decreases during periods of protracted inflation since salaries do not keep pace with prices.

A．Many firsthand accounts of earlier, flawed scientific work are not generally known to be mistaken.
B．Lessons in scientific methodology can be learned by seeing how earlier scientific work was carried out, sometimes especially when the results of that work are known to be incorrect.
C．Scientists can make valuable contributions to the scientific work of their time even if the results of their work will later be shown to be mistaken.
D．There are many scientists today who are not thoroughly familiar with earlier scientific research.
E．Some of the better scientific research of today does not directly address earlier scientific work.

A．Many climbers, lulled into a false sense of security, use the new equipment to attempt climbing feats of which they are not capable.
B．Some mountain-climbing injuries are caused by unforeseeable weather conditions.
C．Mountain climbing, although a dangerous sport, does not normally result in injury to the experienced climber.
D．In the past ten years there have been improvements in mountain-climbing techniques as well as in mountain-climbing equipment.
E．Although the rate of mountain-climbing injuries has increased, the rate of mountain-climbing deaths has not changed.

A．The economy slowed, thus creating a decreased demand for college graduates.
B．The quality of high school education improved.
C．Compared to the 1970’s, a greater number of high schools offered vocational guidance programs for their students.
D．The proportion of the population with at least a collegelevel education increased.
E．There was for the first time in 20 years an oversupply of job seekers with only high school diplomas.

A．There is generally less variation among the wages of garment industry workers than among those of auto industry workers.
B．Wage increases in the auto industry have a smaller effect on manufacturers’ total costs than do wage increases in the garment industry.
C．The fringe benefits that auto makers provide for their employees are more comprehensive than are those provided for garment workers.
D．The auto industry faces more competition from companies outside the United States paying low wages than does the garment industry.
E．The auto industry employs a larger total number of workers than does the garment industry.

A．Henry, although slim at the beginning of his reign, developed a bulky figure because of massive weight gain.
B．During his reign Henry increased his arsenal of weapons because, despite his popularity in 1510, by 1540 the English populace was becoming disenchanted with his rule.
C．Although the style of armor was plain and severe in the beginning of Henry’s reign, he started the fashion of decorating armor with heavy and elaborate metal pieces because of his love for ornamentation.
D．Henry ascended the throne while still an adolescent and grew three inches during his first five years as king.
E．Because of the improved design of battle weaponry during the 1530’s, armor was given a multilayered design so that the sharper and stronger weapons could not pierce it.

A．People often drink coffee after a meal consisting of several types of foods that themselves rapidly break down into sugars during digestion.
B．Drinking more than two cups of coffee in an hour increases a person’s level of stress, and the body reacts to stress by releasing stored glucose into the blood.
C．People who eat very few foods that contain refined sugar often have higher blood-glucose levels than people who eat many such foods.
D．For many people, the consumption of one piece of chocolate cake has the same stimulating effect as one cup of plain coffee.
E．People with sedentary office jobs are more likely to drink large amounts of coffee and to have higher blood-glucose levels than are people with jobs requiring constant physical activity.

A．People who have strong immune systems seldom get the kinds of infections for which people normally take antibiotics.
B．People who have strong immune systems are seldom aware that their immune systems are unusually strong.
C．People who have weak immune systems have great difficulty recovering from bacterial infections if they do not take antibiotics.
D．Some people take antibiotics even though the antibiotics cause a variety of side effects.
E．Some people take antibiotics frequently because their doctors prescribe antibiotics for viral infections as well as for bacterial infections.

A．Before a Japanese factory worker is hired, he or she must present a record of his or her previous productivity.
B．Labor-saving machinery increases productivity, thus yielding profits that more than cover the cost of retraining workers for other jobs.
C．The purchase and maintenance of new machinery adds significantly to the final cost of the goods produced.
D．Factory workers demand a change of procedure in the routine tasks they perform.
E．Limited competition exists among Japanese factories for consumer markets.

A．Owners of stolen cars almost invariably report the theft immediately to the police but tend to delay notifying their insurance company, in the hope that the vehicle will be recovered.
B．Most cars that are stolen are not equipped with antitheft devices, and most cars that are equipped with antitheft devices are not stolen.
C．The most common automobile antitheft devices are audible alarms, which typically produce ten false alarms for every actual attempted theft.
D．Automobile owners who have particularly theft-prone cars and live in areas of greatest incidence of car theft are those who are most likely to have antitheft devices installed.
E．Most automobile thefts are the work of professional thieves against whose efforts antitheft devices offer scant protection.

A．Other species of mammals have large populations, so the loss of a few members of the species is not significant.
B．Other species of mammals have increased their knowledge of dangers through the experience of generation after generation of animals.
C．In other species of mammals, hunters can readily distinguish between males and females or between young animals and adults.
D．In other species of mammals, some members of the species am genetically better equipped to withstand a disease or event that destroys other members of the species.
E．Other species of mammals have retained habits of caution and alertness because they have not been protected as endangered species.

A．Individual large mammals can, in general, travel further than small mammals and so are more able to migrate in search of a hospitable environment.
B．The same pattern of comparative success in smaller, as opposed to larger, species that is observed in mammals is also found in bird species of the same period.
C．The fossil record from the end of Pleistocene period is as clear for small mammals as it is for large mammals.
D．Larger mammals have greater food and space requirements than smaller mammals and are thus less able to withstand environmental change.
E．Many more of the species of larger mammals than of the species of smaller mammals living in North America in that period had originated in climates that were warmer than was that of North America before the end of the Pleistocene period.

A．The adrenal gland acts to lower the level of calcium in the blood.
B．The adrenal gland and the parathyroid gland play the same role in regulating calcium blood levels.
C．The absence of a parathyroid gland causes the adrenal gland to increase the level of calcium in the blood.
D．If the adrenal gland, and no other gland, of a rat were removed, the rat’s calcium level would remain stable.
E．The only function of the parathyroid gland is to regulate the level of calcium in the blood.

A．affluent purchasers currently represent a shrinking portion of the population of all purchasers
B．continued sales depend directly on the maintenance of an aura of exclusivity
C．purchasers of premium products are concerned with the quality as well as with the price of the products
D．expansion of the market niche to include a broader spectrum of consumers will increase profits
E．manufacturing a premium brand is not necessarily more costly than manufacturing a standard brand of the same product

A．The lack of food reduces a mouse’s metabolic rate, thereby limiting wear and tear on the mouse’s body.
B．A lower-calorie diet delays the aging of the immune system and thus protects the mouse from some diseases that usually cause death.
C．A drastic reduction in caloric intake signals the hormonal system to delay the aging process.
D．Mice that are fed less than the standard allowance have cells that have life spans that are longer than average.
E．The vitamin supplements that accompanied the reducedcalorie diet did not contribute calories to that diet.

A．The best actors can also apply for admission to another program and then not enroll in the Avonbridge program.
B．Audition materials that produce good results for one actor may disadvantage another, resulting in inaccurate assessment.
C．The top 10 percent of local and nonlocal applicants might not need scholarships to the Avonbridge program.
D．Some of the applicants who are offered scholarships should have less highly evaluated auditions than some of the applicants who are not offered scholarships.
E．Dividing applicants into local and nonlocal groups is unfair because it favors nonsocial applicants.

A．Comparisons with competitors are most likely to focus on practices that the manager making the comparisons already employs.
B．Getting "inside" information about the unique practices of competitors is particularly difficult.
C．Since companies that compete with each other are likely to have comparable levels of efficiency, only benchmarking against noncompetitors is likely to reveal practices that would aid in beating competitors.
D．Managers are generally more receptive to new ideas that they find outside their own industry.
E．Much of the success of good companies is due to their adoption of practices that take advantage of the special circumstances of their products of markets.

A．compared to carbon monoxide and some hydrocarbons produced by gasoline-powered cars, formaldehyde pollution is not a serious threat to the environment
B．the technical difficulties involved in mass producing methanol-powered cars will prevent them from seriously competing with gasoline-powered cars for several years
C．gasoline-powered cars are required by United States law to be equipped with catalytic converters that reduce emissions of many pollutants
D．measuring a car’s emissions is generally an accurate method of assessing that car’s contribution to atmospheric pollution
E．most formaldehyde pollution generated by gasoline-powered cars results from the photochemical conversion of hydrocarbon emissions into formaldehyde in the atmosphere

A．As people age, muscle and bone tissue tends to make up a smaller and smaller proportion of total body weight.
B．Individuals who reduce their cholesterol levels by losing weight can thereby also reduce their risk of dying from heart attacks or strokes.
C．Smokers, who tend to be leaner than nonsmokers, tend to have shorter life spans than nonsmokers.
D．The normal deterioration of the human immune system with age can be slowed down by a reduction in the number of calories consumed.
E．Diets that tend to lead to weight gain often contain not only excess fat but also unhealthful concentrations of sugar and sodium.

A．Mr. Young is assigned the majority of the most difficult cases at the agency.
B．The other four bill collectors at the agency all consider Mr. Young to be a very capable bill collector.
C．Mr. Young’s rate of collections per year has remained fairly steady in the last few years.
D．Before joining the agency, Mr. Young was affiliated with the credit department of a large department store.
E．None of the bill collectors at the agency has been on the agency’s staff longer than Mr. Young has.

A．Hereditary factors determine in part the degree to which a person is susceptible to the virus that causes Peterson’s disease.
B．The decrease in traditional childhood diseases and the accompanying increase in Peterson’s disease have not been found in any other country.
C．Children who contract measles develop an immunity to the virus that causes Peterson’s disease.
D．Persons who did not contract measles in childhood might contract measles in adulthood, in which case the consequences of the disease would generally be more severe.
E．Those who have contracted Peterson’s disease are at increased risk of contracting chicken pox.