单选题The army launched several air raids yesterday morning.

单选题It's most important to wash your hands frequently and well - 20 seconds with soap and water -and avoid touching your eyes and nose. Alcohol - based hand gels are also effective. Second, to avoid spreading germs, cover your mouth when you cough or sneeze, preferably using your sleeve or a tissue. And third, if you're sick or your child is sick, stay home until the fever has gone away for at least 24 hours without the use of fever - reducing medication. People can avoid spreading germs byA. washing hands frequently and well.B. covering mouth when they cough or sneeze.C. staying away from the population.D. avoid touching eyes and nose after hand washin

单选题Car Thieves Could Be Stopped Remotely (遥远地) Speeding off (超速行驶) in a stolen car, the thief thinks he has got a great catch. But he is in a nasty surprise. The car is fitted with a remote immobilizer (使车辆不能调动的装置), and a radio signal from a control center miles away will ensure that once the thief switches the engine 1 , he will not be able to start it again. For now, such devices 2 only available for fleets of trucks and specialist vehicles used on construction sites. But remote immobilization (使车辆不能调动) technology could soon start to trickle (慢慢地移动) down to ordinary cars, and 3 be available to ordinary cars in the UK 4 two months. The idea goes like this. A control box fitted to the car incorporates 5 miniature cellphone (移动电话，手机), a microprocessor and memory, and a GPS satellite positioning receiver. 6 the car is stolen, a coded cellphone signal will tell the unit to block the vehicle"s engine management system and prevent the engine 7 restarted. There are even plans for immobilizers 8 shut down vehicles on the move, though there are fears over the safety implications of such a system. In the UK, an array of technical fixes is already making 9 harder for car thieves. "The pattern of vehicles crime has changed," says Martyn Randall of Thatcham, a security research organization based in Berkshire that is funded in part 10 the motor insurance industry. He says it would only take him a few minutes to 11 a novice (新手，初学者) how to steal a car using a bare minimum of tools. But only if the car is more than 10 years old. Modern cars are a far tougher (艰苦的) proposition (任务), as their engine management computer will not 12 them to start unless they receive a unique ID code beamed out by the ignition (点火) key. In the UK, technologies like this 13 achieve a 31 percent drop in vehicle-related crime since 1997. But determined criminals are still managing to find other ways to steal cars. Often by getting hold of the owner"s keys in a burglary (盗窃). In 2000, 12 percent of vehicles stolen in the UK were taken using the owner"s keys double the previous year"s figure. Remote-controlled immobilization system would 14 a major new obstacle in the criminal"s way by making such thefts pointless. A group that includes Thatcham, the police, insurance companies and security technology firms have developed standards for a system that could go on the market sooner than the 15 expects.

单选题What do the majority of the people in the world use for health care?

单选题There are notices to the contrary,a great deal of technical writing is at best awkward and at worst actually unclear.

单选题These paintings are considered by many to be authentic. A. faithful B. royal C. sincere D. genuine

单选题The policeman wrote down all the particulars of the accident.

单选题We can conclude from this passage that ballet

单选题Mary was one of the principal organizers of the Artists' Guild. A. planners B. employees C. actors D. recipients

单选题Foreign money can be converted into the local currency at this bank. A. altered B. changed C. bought D. sold

单选题A lot of people could fall ill after drinking contaminated water.

单选题We learn from the first paragraph that laughter

单选题Obviously these people can be relied on in a crisis. A. lived on B. depended on C. believed in D. joined in

单选题An important part of the national government is the Foreign Service, a {{U}}branch{{/U}} of the Department of State.

单选题 下面有3篇短文，每篇短文后有5道题，每题后面有4个选项。请仔细阅读短文并根据短文回答其后面的问题，从4个选项中选择1个最佳答案。{{B}}第一篇{{/B}} In the old days, children were familiar with birth and death as part of life. This is perhaps the first generation of American youngster(年轻人)who have never been close by during the birth of a baby and have never experienced the death of a family member. Nowadays when people grow old, we often send them to nursing homes. When they get sick, we transfer them to a hospital, where children are forbidden to visit terminally ill patients--even when those patients are their parents. This deprives(剥夺)the dying patient of significant family members during the last few days of his life and it deprives the children of an experience of death, which is an important learning experience. Some of my colleagues and I once interviewed and followed approximately 500 terminally ill patients in order to find out what they could teach us and how we could be of more benefit, not just to them but to the members of their families as well. We were most impressed by the fact that even those patients who were not told of their serious illness were quite aware of its potential outcome. It is important for family members, and doctors and nurses to understand these patients' communications in order to truly understand their needs, fears, and fantasies(幻想). Most of our patients welcomed another human being with whom they could talk openly, honestly, and frankly about their trouble. Many of them shared with us their tremendous need to be informed, to be kept up-to-date on their medical condition, and to be told when the end was near. We found out that patients who had been dealt with openly and frankly were better able to cope with the approach of death and finally to reach a true stage of acceptance prior to death.

单选题The fact that Chinese characters {{U}}are associated with{{/U}} ideas, not sound, would make it a fine written international language.

单选题We are certain that he will get over his illness.

单选题The HIV virus is an excellent warrior to fight the body's immune cells.

单选题The Ice Age Twenty thousand years ago, the earth was held in control by relentlessly (不宽容地) probing fingers of ice that drew power from frigid strongholds in the north and crept southwestward to bury forests, fields, and mountains. Landscapes that were violated by the slowly moving glaciers(冰川)would carry the scars of this advance far into the future. Temperatures dropped deeply, and land surfaces in many parts of the world were depressed by the unrelenting weight of the thrusting ice. At the same time, so much was drawn from the oceans to form these huge glaciers that sea levels around the world fell by three hundred and fifty feet, and large areas of the continental shelf became dry land. This period of the Earth's history had come to be called the Ice Age. In all, about eleven million square miles of land were covered with ice. The Ice Age terminated about fourteen thousand years ago when the ice sheets began to retreat. It took about seven thousand years for the ice to retreat to its present level.

单选题I didn"t particularly want to go, but I had to.