单选题Which of the following sentences will Heather Helms-Erikon use to illustrate her own argument?

单选题The government intends to ______ an end to inflation once and for all.

单选题 Amid all the job losses, there's one category of worker that the economic disruption has been good for: nonhumans. From self-service checkout lines at the supermarket to industrial robots armed with saws and taught to carve up animal bodies in slaughter-houses, these ever-more-intelligent machines are now not just assisting workers but actually kicking them out of their jobs. Automation isn't just affecting factory workers, either. Some law firms now use artificial intelligence software to scan and read mountains of legal documents, work that previously was performed by highly-paid human lawyers. 'Robots continue to have an impact on blue-collar jobs, and white-collar jobs are under attack by microprocessors, ' says economics professor Edward Learner. The recession permanently wiped out 2.5million jobs. US gross domestic product has climbed back to pre-recession levels, meaning we're producing as much as before, only with 6% fewer workers. To be sure, robotics are not the only job killers out there, with outsourcing (外包) stealing far more jobs than automation. Jeff Burnstein, president of the Robotics Industry Association, argues that robots actually save US jobs. His logic: companies that embrace automation might use fewer workers, but that's still better than firing everyone and moving the work overseas. It's not that robots are cheaper than humans, though often they are. It's that they're better. 'In some cases the quality requirements are so exacting that even if you wanted to have a human do the job, you couldn't, ' Burnstein says. Same goes for surgeons, who're using robotic systems to perform an ever-growing list of operations—not because the machines save money but because, thanks to the greater precision of robots, the patients recover in less time and have fewer complications, says Dr. Myriam Curet. Surgeons may survive the robot invasion, but others at the hospital might not be so lucky, as iRobot, maker of the Roomba, a robot vacuum cleaner, has been showing off Ava, which could be used as a messenger in a hospital. And once you're home, recovering, Ava could let you talk to your doctor, so there's no need to send someone to your house. That 'mobile telepresence' could be useful at the office. If you're away on a trip, you can still attend a meeting. Just connect via videoconferencing software, so your face appears on Ava's screen. Is any job safe? I was hoping to say 'journalist, ' but researchers are already developing software that can gather facts and write a news story. Which means that a few years from now, a robot could be writing this column. And who will read it? Well, there might be a lot of us hanging around with lots of free time on our hands.

单选题We can learn from the first paragraph that in the world the scheme of tolling systems is

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单选题Knowledge is a comfortable and necessary retreat and ______ for us in an advanced age; and if we do not plant it while young, it will give us no shade when we grow old.

单选题It is illegal in some countries that children ____ unattended at home.

单选题There is nothing more possible than a new hip or knee that can put the spring back in your step. Patients receiving joint implants （移植） often are able to resume many of the physical activities they lo

单选题According to the International Bank for Reconstruction and Development in 1995, the wealthiest 10 percent of the population received 30.9 percent of the income, while the poorest 10 received only 2.2 percent. Such ______ in income and wealth are found in both cities and rural areas.

单选题The new factory that has been built next to us has ______ the value of our house.

单选题To speed ______you entry, please bring your Admission Card with you.

单选题It has been months since Tina Moore last bit into a bagel or a slice of toast. 'Protein is good. Carbs (碳水化合物) are bad,' says 41-year-old Moore, who altered her diet five years ago in a bid to lose weight. Moore is one of an estimated 15 million-plus Americans seen as devoted followers of dieting advisor Dr. Robert Atkins, who 28 eating a diet high in protein for those who want to lose weight and keep it off. The hamburger patty is good, the hamburger bun bad, according to the 29 of Atkins, who has turned his philosophies into a dieting revolution, starting with his first book, Dr. Atkins Diet Revolution, in 1972. Atkins' books—his latest, Atkins for Life, was published this year—routinely 30 best-seller lists. Atkins companies have made millions of dollars in sales of specialty low-carb food products and carb-counting scales, But the popularity of Atkins' eating advice, now appealing to another generation, is 31 some food companies who rely on the consumer appetite for carbohydrate-laden foods such as pastas and pizzas, cakes, cookies and cereals, to add weight to their own bottom lines. 'Our industry has to do something, and soon, It is starting to become a 32 belief that carbohydrates are bad,' said Judi Adams, director of the Wheat Foods Council, a society of industry players that includes ConAgra, General Mills and Kellogg Co. Part of the society's push will be in Washington, where federal health officials are starting talks on 33 to the nation's 11-year-old Food Guide Pyramid. 34 , the pyramid puts bread, cereals, rice and pasta as the foundation for healthy eating, The strategy is a direct attack on Atkins: Americans who follow the Atkins diet increase their risk of health problems that include cardiovascular disease, high cholesterol, kidney damage and some cancers, the Wheat Foods Council says. Adding 35 to injury, it claims that Atkins followers can also suffer headaches, constipation and bad breath. According to Atkins, he is not looking to go to war with the food companies, and even Atkins diehards allow for an 36 doughnut or cookie. 'We teach people how to respect it and, on rare occasions, have it in 37 ,' he said. 'We know people can't stay away from it forever.' A. mainstream B. top C. profitable D. occasional E. Currently F. panicking G. proceedings H. hasty I. recommends J. insult K. teachings L. revisions M. Empirically N. moderation O. merge

单选题Ray:______. Where was I ? Brenda: You were talking about your trip to South Africa.

单选题I will stay with you ______ there is a room free.

单选题 I felt somewhat disappointed and was about to leave, ______ something occurred which attracted my attention.

单选题The story he told us was very ______and we were

单选题The word "slump" in the first paragraph may be replaced by ______.

单选题Forthispart,youareallowed30minutestowriteashortessaybasedonthepicturebelow.YoushouldstartyouressaywithabriefaccountoftheimpactoftheInternetonlearningandthenexplainwhyeducationdoesn'tsimplymeanlearningtoobtaininformation.Youshouldwriteatleast120wordsbutnomorethan180words.

单选题In most sectors of the economy, it is the seller who attempts to attract a potential buyer with various induction of price, quality and utility, and it is the buyer who makes the decision. In the health care industry, however, the doctor-patient relationship is the mirror image of the ordinary relationship between producer and consumer, Once an individual has chosen to see a physician, the physician usually makes all significant purchasing decisions: whether the patient should return next Wednesday, whether X-rays are needed, whether drugs should be prescribed, etc. This is particularly significant in relation to hospital care. The physician must certify the need for hospitalization, determine what procedures will be performed, and announce when the patient may be discharged. The patient may be consulted about some of these decisions, but in the main it is the doctors judgments that are final. Little wonder then that in the eyes of the hospital it is the physician who is the real consumer. As a consequence, the medical staff represents the power-center in hospital policy and decision-making, not the administration. Although usually there are in this situation four identifiable participants, the physician, the hospital, the patient and the prayer (generally an insurance carrier or government), the physician makes the essential decision for all of them. The hospital becomes an extension of the physicians; the payer generally meets most of the bonafide (真正的) bills generated by the physician/hospital and for the most part, the patient plays a passive role. In routine or minor illnesses, or just plain worries, the patients options are of course much greater with respect to use and price. But in illnesses that are of some significance, such choice tends to evaporate. And it is for these illnesses that the bulk of the health care dollar is spent. We estimate that about 75-80 percent of health care expenditures are determined by physicians, not patients. For this reason, economy measures directed at patient or the general or the general public are relatively ineffective.