单选题Since Wallerstein's study, ______.

单选题Trapped miners dramatically emerged after 69 days of underground imprisonment.

单选题5 Can the Internet help patients jump the line at the doctor's office? The Silicon Valley Employers Forum, a sophisticated group of technology companies, is launching a pilot program to test online "virtual visits" between doctors at three big local medical groups and about 6,000 employees and their families. The six employers taking part in the Silicon Valley initiative, including heavy hitters such as Oracle and Cisco Systems, hope that on line visits will mean employees won't have to skip work to tend to minor ailments or to fol low up on chronic conditions. "With our long commutes and traffic, driving 40 miles to your doctor in your hometown can be a big chunk of time," says Cindy Conway, benefits director at Cadence Design Systems, one of the participating companies. Doctors aren't clamoring to chat with patients online for free; they spend enough un paid time on the phone. Only 1 in 5 has ever E-mailed a patient, and just 9 percent are in terested in doing so, according to the research firm Cyber Dialogue. "We are not stupid," says Stifling Somers, executive director of the Silicon Valley employers group. "Doctors getting paid is a critical piece in getting this to work. " In the pilot program, physicians will get $ 20 per online consultation, about what they get for a simple office visit. Doctors also fear they'll be swamped by rambling E-mails that tell everything but what's needed to make a diagnosis. So the new program will use technology supplied by Healinx, an Alameda, Calif-based start-up. Healinx's "Smart Symptom Wizard" ques tions patients and turns answers into a succinct message. The company has online dialogues for 60 common conditions. The doctor can then diagnose the problem and outline a treat ment plan, which could include E-mailing a prescription or a face-to-face visit. Can E-mail replace the doctor's office? Many conditions, such as persistent cough, require stethoscope to discover what's wrong and to avoid a malpractice suit. Even Larry Bonham, head of one of the doctor's groups in the pilot, believes the virtual doctor's visits offer a "very narrow" sliver of service between phone calls to an advice nurse and a visit to the clinic. The pilot program, set to end in nine months, also hopes to determine whether online visits will boost worker productivity enough to offset the cost of the service. So far, the Internet's record in the health field has been underwhelming. The experiment is "a huge roll of the dice for Healing", notes Michael Barrett, an analyst at Internet consulting firm Forester Research. If the "Web visits" succeed, expect some HMOs (Health Maintenance Organizations) to pay for online visits. If doctors, employers, and patients aren't satis fied, figure on one more E-health start-up to stand down.

单选题Passage Five Luckily, the back tires of their car stayed on the road. Otherwise, the young couple would have driven right into a pit twenty feet wide and thirty feet deep! The man and woman were coming home from a party. They were enjoying the landscape around Swansea, Wales. Suddenly, they found the front of their car leaning into a huge hole. The ear barely hung onto the edge of the pit. It swayed back and forth like the arm of a balance. In their precarious position, the couple knew that each movement they made could be a matter of life and death. Slowly, slowly, they edged toward the backseat. Then each opened a back door. And on the count of three, they jumped out together. The accident was so scary that they ran a long way before they calmed down. But later they returned to see what had happened. They found that a big chunk of the road had sunk into the ground ! And at the bottom of the pit lay their ear--roof down and wheels up. Was this mystery of the sunken road ever solved? It turned out that an abandoned mine shaft lay under the road. It had collapsed and taken the pavement with it. Layers of tunnels intersect beneath the city of Swansea. The tunnels were built so many years ago that no one knows where they end or begin. The tunnels are shaky, like those that ants build in the sand. No one knows when the entire city might collapse.

单选题The passage ends with ______.

单选题[此试题无题干]

单选题— I'm ______ sorry to have put you into so much trouble. — It doesn't matter.A. extremelyB. extensivelyC. tooD. much

单选题The teacher told the students that the Earth______round the Sun.

单选题I recognized John ______ he entered the room. A. hardly B. the minute C. no sooner D. at once

单选题All the housewives who went to the new supermarket had one great ambition: to be the lucky customer who did not have to pay for her shopping. For this was what the notice just inside the entrance promised. It said: "Remember, once a week, one of our customers gets free goods. This May Be Your Lucky Day!" For several weeks Mrs. Edwards hoped, like many of her friends, to be the lucky customer. Unlike her friends, she never gave up hoping. The cupboards in kitchen were full of things which she did not need. Her husband tried to advise her against buying things but failed. She dreamed of the day when the manager of the supermarket would approach her and say: "Madam, this is Your Lucky Day. Everything in your basket is free." One Friday morning, alter she had finished her shopping and had taken it to her car, she found that she had forgotten to buy any tea. She dashed back to the supermarket, got the tea and went towards the cash-desk. As she did so, she saw the manager of the supermarket approach her. "Madam," he said, holding out his hand, "I want to congratulate you! You are our lucky customer and everything you have in your basket is free!"

单选题American society is not nap (午睡) friendly. In fact, says David Dinges, a sleep specialist at the University of Pennsylvania School of Medicine. ""There"s even a prohibition against admitting we need sleep. " Nobody wants to be caught napping or found asleep at work. To quote a proverb: "Some sleep five hours, nature requires seven, laziness nine and wickedness eleven. " Wrong. The way not to fall asleep at work is to take naps when you need them. "We have to totally change our attitude toward napping," says Dr. William Dement of Stanford University, the godfather of sleep research. Last year a national commission led by Dement identified an "American sleep debt" which one member said was as important as the national debt. The commission was concerned about the dangers of sleepiness, people causing industrial accidents or falling asleep while driving. This may be why we have a new sleep policy in the White House. According to recent reports, president Clinton is trying to take a half hour snooze (打瞌睡) every afternoon. About 60 percent of American adults nap when given the opportunity. We seem to have "a midafternoon quiet phase" also called "a secondary sleep gate. " Sleeping 15 minutes to two hours in the early afternoon can reduce stress and make us refreshed. Clearly, we were born to nap. We Superstars of Snooze don"t nap to replace lost shut eye or to prepare for a night shift. Rather, we "snack" on sleep, whenever, wherever and at whatever time we feel like it. I myself have napped in buses, cars, planes and on boats; on floors and beds; and in libraries, offices and museums.

单选题More than 6,000 children were expelled (开除) from US school last year for bringing guns and bombs to school, the US Department of Education said on May 8. The department gave a report to the expulsions (开除) as saying handguns accounted for 58% of the 6,093 expulsions in 1996—1997, against 7% for rifles (步枪) or shotguns and 35% for other types of firearms. "The report is a clear sign that our nation's public schools are cracking down (严惩) on students who bring guns to school," Education Secretary Richard Riley said in a statement. In March 1997, an 11-year old boy and a 13-year old boy using handguns and rifles shot dead four children and a teacher at a school in Arkansas. In October, two were killed and seven wounded in a shooting at a Mississippi school. Two months later, a 14-year old boy killed three high school students and wounded five in Kentucky. Most of the expulsions, 56%, were from high school, 34% were from junior high schools and 9% were from elementary schools, the report said.

单选题

单选题Doctors recommend Vitamin C for keeping colds ______bay.

单选题A. theyB. thisC. thatD. thing

单选题We should critically ______ whatever is beneficial in literature and arts from western countries.

单选题He was Uurgent/U in his demands.

单选题Economists believe that job earnings influence choice of occupation. They acknowledge that people place varying emphasis【C1】______income, but point out that workers tend to move from one occupation to another【C2】______changes in salaries. In 1931, H. F. Clark, an economist, stated that " proper information regarding wages if sufficiently【C3】______upon people, will lead to correct choice of occupation and correct【C4】______of people in an occupation, provided barriers to occupations have been removed. " This means that the supply and demand of workers have【C5】______to do with wages, 【C6】______in turn influence people to choose certain careers. However, all barriers to occupations will have to be removed【C7】______career choices can be【C8】______by economics alone. There is little question【C9】______economic factors have some influence on choice of an occupation. But to picture them as the major or most important reason【C10】______against the soundest of folk wisdom: " Man does not live by bread alone. "

单选题He had expected gratitude for his disclosure, but instead he encountered ______ bordering on hostility.

单选题Which of the following words is entirely arbitrary?(西安交大2008研)