单选题Which of the following is NOT true of Canadarm 2?

单选题Walt Whitman’s ______ was written in memorial of Lincoln.

单选题I used to look at my closet and see clothes. These days, whenever I cast'my eyes upon the stacks of shoes and hangers of shirts, sweaters and jackets, I see water. It takes 569 gallons to manufacture a T-shirt, from its start in the cotton fields to its appearance on store shelves. A pair of running shoes? 1,247 gallons. Until last fall, I'd been oblivious to my "water footprint", which is defined as the total volume of freshwater that is used to produce goods and services, according to the Water Footprint Network. The Dutch nonprofit has been working to raise awareness of freshwater scarcity since 2008, but it was through the "Green Blue Book" by Thomas M. Kostigen that I was able to see how my own actions factored in. I've installed gray-water systems to reuse the wastewater from my laundry machine and bathtub and reroute it to my landscape-systems that save, on average, 50 gallons of water per day. I've set up rain barrels and infiltration pits to collect thousands of gallons of storm water cascading from my roof. I've even entered the last bastion of greendom-installing a composting toilet. Suffice to say, I've been feeling pretty satisfied with myself for all the drinking water I've saved with these big-ticket projects. Now I realize that my daily consumption choices could have an even larger effect-not only on the local water supply but also globally: 1.1 billion people have no access to freshwater, and, in the future, those who do have access will have less of it. To see how much virtual water 1 was using, I logged on to the "Green Blue Book" website and used its water footprint calculator, entering my daily consumption habits. Tallying up the water footprint of my breakfast, lunch, dinner and snacks, as well as my daily dose of over-the-counter uppers and downers- coffee, wine and beer- I'm using 512 gallons of virtual water each day just to feed myself. In a word: alarming. Even more alarming was how much hidden water I was using to get dressed. I'm hardly a clotheshorse, but the few new items I buy once again trumped the amount of water flowing from my faucets each day. If I'm serious about saving water, I realized I could make some simple lifestyle shifts. Looking more closely at the areas in my life that use the most virtual water, it was food and clothes, specifically meat, coffee and, oddly, blue jeans and leather jackets. Being a motorcyclist, I own an unusually large amount of leather-boots and jackets in particular. All of it is enormously water intensive. It takes 7,996 gallons to make a leather jacket, leather being a byproduct of beef. It takes 2,866 gallons of water to make a single pair of blue jeans, because they' re made from water-hogging cotton. Crunching the numbers for the amount of clothes I buy every year, it looks a lot like my friend's swimming pool. My entire closet is borderline Olympic. Gulp. My late resolution is to buy some items used. Underwear and socks are, of course, exempt from this strategy, but I have no problem shopping less and also shopping at Goodwill. In fact, I'd been doing that for the past year to save money My clothes' outrageous water footprint just reinforced it for me. More conscious living and substitution, rather than sacrifice, are the prevailing ideas with the water footprint. It's one I'm trying, and that's had an unusual upside. I had a hamburger recently; and I enjoyed it a lot more since it is now an occasional treat rather than a weekly habit. (One gallon =3.8 litres)

单选题______ is the capital of Wales. A. Dublin B. Edinburgh C. Cardiff D. New Castle

单选题Which of the following statements is true?A. The wide influence of conservatism can be found in American daily life.B. Few English people atrach great importance to local and individual character.C. English people are known for their conservatism.D. English people like small talk and usually espress their mind freely.

单选题"They had large resources of compulsion at their disposal.' means that the teachers______.

单选题It's easy to see why the price of gasoline is so upsetting to so many people. Gas prices are the one economic indicator you see all the time, prominently posted on big signs— and the prices are at record levels, seemingly rising by the hour. That's created a new pastime: driving around until you hit the big score, saving a nickel a gallon. Is this a good use of your time? Not really, once you calculate how long it takes to drive around looking for a bargain and how much gas you burn doing it. If you're already at the financial brink, higher gas prices might push you over—but for most people, they ought not to be that big a deal. Don't believe me? Here are the numbers. During its first five years, the average vehicle costs its owner around $725 a month, according to Edmunds.com, an automotive Web site. That includes depreciation, insurance, maintenance and such, but not gas. That averaged $1.94 a gallon last week, up 45 cents from a year ago. The average vehicle uses 550 gallons of gas annually. Do the math, and at today's price, it costs around $1,070 a year to fuel an average vehicle, up from $820. The difference: less than $25 a month. Forego the Big Gulp, hot dog and chips that you get along with your fill-up, and you'll be ahead of the game. If you must worry, at least worry about the right thing: the way energy prices will slow down the economy if they stay at current levels. "Higher energy costs flow into every nook and cranny of the economy," says Daniel Yergin, chairman of Cambridge Energy Research Associates. Each dollar-a-barrel price hike acts like a $20 million-a-day tax —$7.3 billion a year—on the rest of the economy, with another $13 million a day for natural gas, also in short supply. Oil's up $12 a barrel in the past year, a levy that runs more than $100 billion annually. Even in an $11 trillion economy, that stings. Unlike previous price spikes, caused by supply shortages, the current jump is caused largely by higher demand as the U.S. economy recovers, China's surges and the rest of the world's fortunes improve. That's the bad news part of the good economic news. But while supply and demand drive prices in the long term, in the short term they're heavily influenced by financial players, such as traders on the New York Mercantile Exchange. Yergin estimates that the combination of anxiety about the Middle East and financial players have added $6 to $8 a barrel to oil prices, which closed at $41.38 a barrel Friday. This means that even though world supplies are tight, oil could be knocked down to about $30. Maybe we need some out-of-the-box thinking to dull this price spike. Sure, there's a long-term problem, requiring less demand or more supply. But for now, perhaps the Bush administration could use the 660-billion-barrel Strategic Petroleum Reserve to push prices down. One approach, suggested by Loews CEO Jim Tisch, whose company has extensive energy holdings, is to trade some reserve oil for oil to be delivered in a year. Based on Friday's prices, we could swap six barrels today for seven we'd get in 2005. That seems smarter than what we're doing: filling the reserve at today's prices. Think of it. We'd both save money and reduce current demand. The White House isn't going for that, however. "The president believes that the Strategic Petroleum Reserve should be used only in the event of an emergency, not to manipulate prices," said White House spokesman Trent Duffy. It should be noted that Bush excoriated Bill Clinton for using the reserve to drive down heating-oil prices to help A1 Gore. Sure, that was political— but not necessarily unsound economically. OK, even if you insist on thinking inside the box, just remember that although the big picture is well worth your worry, your gas bill's not worth obsessing over. After all, at the current prices, conserving's important—even mental energy.

单选题Whatisthe"commonmisperception"theWHObreaks?A.Non-communicablediseasesoftenafflictrichpeople.B.Non-communicablediseasesarecurable.C.Non-communicablediseasesarepreventable.D.Non-communicablediseasesarenotcausedbytobaccouse.

单选题Hollywood is in the state of _____.

单选题On the issue of who should be included in the DNB, the writer seems to suggest that ______.

单选题If one buys InfoMate, what comes with it free of charge?

单选题{{B}}TEXT B{{/B}} Researchers investigating brain size and mental ability say their work offers evidence that education protects the mind from the brain' s physical deterioration. It is known that the brain shrinks as the body ages, but the effects on mental ability are different from person to person. Interestingly, in a study of elderly men and women, those who had more education actually had more brain shrinkage. "That may seem tike bad news," said study author Dr. Edward Coffey, a professor of psychiatry and of neurology at Henry Ford Health System in Detroit. However, he explained, the Finding suggests that education allows people to withstand more brain-tissue loss before their mental functioning begins to break down. The study, published in the July issue of Neurology, is the first to provide biological evidence to support a concept called the "reserve" hypothesis, according to the researchers. In recent years, investigators have developed the idea that people who are more educated have greater cognitive reserves to draw upon as the brain tissue to spare. Examining brain scans of 320 healthy men and women ages 66 to 90, researchers found that for each year of education the subjects had, there was greater shrinkage of the outer layer of the brain known as the cortex. Yet on tests of cognition and memory, all participants scored in the range indicating normal. "Everyone has some degree of brain shrinkage," Coffey said. "People lose (on average) 2.5 percent decade starting at adulthood. There is, however, a "remarkable range" of shrinkage among people who show no signs of mental decline, Coffey noted. Overall health, he said, accounts for some differences in brain size. Alcohol or drug use, as well as medical conditions such as diabetes and high blood pressure, contribute to brain-tissue loss throughout adulthood. In the absence of such medical conditions, Coffey said, education level helps explain the range of brain shrinkage exhibited among the mentally-fit elderly. The more-educated can withstand greater loss. Coffey and colleagues gauged shrinkage of the cortex by measuring the cerebrospinal fluid surrounding the brain. The greater the amount of fluid, the greater the cortical shrinkage. Controlling for the health factors that contribute to brain injury, the researchers found that education war related to the severity of brain shrinkage. For each year of education from first grade on, subjects had an average of 1.77 milliliters more cerebrospinal fluid around the brain. For example, Coffey' s team reported, among subjects of the same sex and similar age and skull size, those with 16 years of education had 8 percent to l0 percent more cerebrospinal fluid compared with those who had four years of schooling. Of course, achieving a particular education level is not the definitive measure of someone' s mental capacity. And, said Coffey, education can be "a proxy for many things". More-educated people, he noted, are often less likely to have habits, such as smoking, that harm overall health. But Coffey said that his team' s findings suggest that like the body, the brain benefits from exercise. "The question is whether by continuing to exercise the brain we can forestall the effects of (brain shrinkage)," he said. "My hunch is that we can." According to Coffey, people should strive throughout life to keep their brains alert by exposing themselves to new experiences. Travelling is one way to stimulate the brain, he said; a less adventuresome way is to do crossword puzzles. "A hot topic down the road," Coffey said, "will be whether education even late in life has a protective effect against mental decline." Just how education might affect brain cells is unknown. In their report, the researchers speculated that in people with more education, certain brain structures deeper than the cortex may stay intact to compensate for cortical shrinkage.

单选题Which of the following is NOT correct?A. Polysemy is the phenomenon that the same one word may have more than one meaning.B. Homonymy refers to the phenomenon that words having different meanings have the same form.C. Hyponymy refers to the sense relation between a more general, more inclusive word and a more specific word.D. Antonymy is used for the sameness or close similarity of meaning.

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单选题The pair of words "buy" and "sell" are ______.

单选题[1] At first the weather was fine and still. The thrushes were calling, and in the swamps close by something alive droned pitifully with a sound like blowing into an empty bottle. A snipe flew by, and the shot aimed at it rang out with a gay, resounding note in the spring air. But when it began to get dark in the forest a cold, penetrating wind blew inappropriately from the east, and everything sank into silence. Needles of ice stretched across the pools, and it felt cheerless, remote, and lonely in the forest. There was a whiff of winter. [2] Ivan Velikopolsky, the son of a sacristan, and a student of the clerical academy, returning home from shooting, walked all the time by the path in the water-side meadow. His fingers were numb and his face was burning with the wind. It seemed to him that the cold that had suddenly come on had destroyed the order and harmony of things, that nature itself felt ill at ease, and that was why the evening darkness was falling more rapidly than usual. All around it was deserted and peculiarly gloomy. The only light was one gleaming in the widows' gardens near the river; the village, over three miles away, and everything in the distance all round was plunged in the cold evening mist. The student remembered that, as he went out from the house, his mother was sitting barefoot on the floor in the entry, cleaning the samovar, while his father lay on the stove coughing; as it was Good Friday nothing had been cooked, and the student was terribly hungry. And now, shrinking from the cold, he thought that just such a wind had blown in the days of Rurik and in the time of Ivan the Terrible and Peter, and in their time there had been just the same desperate poverty and hunger, the same thatched roofs with holes in them, ignorance, misery, the same desolation around, the same darkness, the same feeling of oppression. All these had existed, did exist, and would exist, and the lapse of a thousand years would make life no better. And he did not want to go home. [3] The gardens were called the widows' because they were kept by two widows, mother and daughter. A camp fire was burning brightly with a crackling sound, throwing out light far around on the ploughed earth. The widow Vasilisa, a tall, fat old woman in a man's coat, was standing by and looking thoughtfully into the fire; her daughter Lukerya, a little pock-marked woman with a stupid-looking face, was sitting on the ground, washing a caldron and spoons. Apparently they had just had supper. There was a sound of men's voices; it was the labourers watering their horses at the river. [4] "Here you have winter back again," said the student, going up to the camp fire. "Good evening. " [5] Vasilisa started, but at once recognized him and smiled cordially. [6] They talked. Vasilisa, a woman of experience, who had been in service with the gentry, first as a wet-nurse, afterwards as a children's nurse, expressed herself with refinement, and a soft, sedate smile never left her face; her daughter Lukerya, a village peasant woman, who had been beaten by her husband, simply screwed up her eyes at the student and said nothing, and she had a strange expression like that of a deaf mute. [7] The labourers came back from the river, and one of them riding a horse was quite near, and the light from the fire quivered upon him. The student said good-night to the widows and went on. And again the darkness was about him and his fingers began to be numb. A cruel wind was blowing, winter really had come back and it did not feel as though Easter would be the day after tomorrow. He looked round. The solitary light was still gleaming in the darkness and no figures could be seen near it now.

单选题______ act refers to the act of expressing the speaker's intention. A. Locutionary B. Illocutionary C. Perlocutionary D. Spontaneous

单选题The largest of the ethnic minorities in America is______ A. the blacks B. the Mexico-Americans C. the Spanish-Americans D. the Chinese

单选题 {{B}}TEXT A{{/B}} In the evenings, they go to the mall. Once a week or more. Sometimes, they even leave the dinner dishes in the sink so they will have enough time to finish all the errands. The father never comes—he hates shopping, especially with his wife. Instead, he stays at home to read the paper and put around his study. To do things that the other dads must be doing in the evenings. To summon the sand to come rushing in and plug up his ears with its roaring silence. Meanwhile, the mother arms herself with returns from the last trip. Her two young daughters forget games of flashlight tag or favorite TV shows and strap on tennis shoes and seatbelts: and they're off. On summer nights, when it's light until after the fireflies arrive, the air is heavy and moist. The daughters unroll their windows and stick the whole of their heads out into the slate blue sky, feeling full force the sweaty, honey suckle air. In the cold mall, their rubber soles squeak on shiny linoleum squares. The younger daughter tries not to step on any cracks. The older daughter keeps a straight-ahead gazer her sullen eyes count down each errand as it's done. It is not until the third or, on a good night, the fourth errand that the trouble begins. The girls have wandered over to examine rainbow beach towels, perhaps, or some kind of pink ruffled bedspread. The mother's voice finds them from a few aisles away. Dinner squirms in the daughters' stomachs. Now comes that what-if-I-threw-up-right-this-second? or where-is-a-rabbit-hole-for-me-to-fall-into? feeling that they get around this time of evening, at the mall. The older one shakes her ponytails at the younger one. Her blue eyes hiss the careful-don't-cry warning, but the younger one's cheeks only get redder. Toe by toe, the daughters edge towards housewares where they finger lace placemats or trace patterns in the store carpet with sneakered soles. The mother's voice still finds them, shaking with rage. Finally, heels slapping in her sandals, she strides towards them and then keeps going. They follow, catching her word-trail, "Stupid people. Stupid, stupid, stupid. I HATE stupid people." It's the little skips between steps the younger one takes to keep up with her mother's long, angry legs. It's the car door slamming and the seat belt buckle yanked into place. It's those things that tell the daughters how the next few hours will go. In the car, the older one sighs and grinds her back teeth. The younger one feels her face get hotter and her eyes start to swell. She stares at an ice cream stain on the back of the front seat and sees a pony, a flower, and a fairy in that splash of chocolate mint chip. The mother begins on both at once. "And when we get home, if your shoes are still in the TV room, I'm throwing them out. Same for books. No more shit house. No more lazy, ungrateful kids." And so on and so on through the black velvet sky and across the Hershey bar roads. On into the house with a slap or two. "You'll be happy when I'm in my grave," wails at them as they put on their nightgowns and brush their teeth. The older one sets a stone jaw and the younger one tries not to sob as she opens wide, engulfing her small hand and scrubbing each and every molar. The father is not spared. The volcanic mother saves some up just for him. "Fucking lousy husband. Do-nothing father." And on like that for an hour or so more. Then in the darkest part of the night, it's bare feet and cool hands on a small sweaty forehead. Kisses and caresses and "Sorry Mom got a little mad." Promises for that pink ruffled bedspread or maybe a new stuffed animal. Long fingers rake through the younger one's curls. "Tomorrow evening, we'll get you some kind of treat. Right after dinner, we'll go to the mall."

单选题Whatwilltheagencieshelptoincrease?