单选题He has been granted {{U}}asylum{{/U}} in France. A. protection B. power C. relief D. license

单选题 How to Spent His Extra Time Given the choice between spending an evening with friends and taking extra time for his schoolwork, Andy Klise admits he would probably {{U}} {{U}} 1 {{/U}} {{/U}}for the latter. It's not that he doesn't like to have fun; it's just that his desire to excel {{U}} {{U}} 2 {{/U}} {{/U}}drives his decision-making process. A 2001 graduate of Wooster High School and now a senior biology major at The College of Wooster, Klise acknowledges that he may someday have {{U}} {{U}} 3 {{/U}} {{/U}}thoughts about his decision to limit the time he has spent {{U}} {{U}} 4 {{/U}} {{/U}}, but for now, he is comfortable with the choices he has made. "If things had not {{U}} {{U}} 5 {{/U}} {{/U}}out as well as they have, I would have had some regrets," says Klise, who was a Phi Beta Kappa inductee as a junior. " But spending the extra time studying has been well worth the {{U}} {{U}} 6 {{/U}} {{/U}}. I realized early on that to be successful, I had to make certain {{U}} {{U}} 7 {{/U}} {{/U}}." {{U}} {{U}} 8 {{/U}} {{/U}}the origin of his intense motivation, Klise notes that it has been part of his makeup for as long as he can remember. "I've always been goal {{U}} {{U}} 9 {{/U}} {{/U}}," he says. " This internal drive has caused me to give my all {{U}} {{U}} 10 {{/U}} {{/U}}pretty much everything I do." Klise {{U}} {{U}} 11 {{/U}} {{/U}}Wooster's nationally recognized Independent Study (IS) program with preparing him for his next {{U}} {{U}} 12 {{/U}} {{/U}}in life: a research position with the National Institute of Health (NIH). "I am hoping that my IS experience will help me {{U}} {{U}} 13 {{/U}} {{/U}}a research position with NIH," says Klise. "The yearlong program gives students a chance to work with some of the nation's {{U}} {{U}} 14 {{/U}} {{/U}}scientists while making the {{U}} {{U}} 15 {{/U}} {{/U}}from undergraduate to graduate studies or a career in the medical field."

单选题Regular visits from a social worker can be of {{U}}immense{{/U}} value to old people living alone. A. equal B. immediate C. moderate D. great

单选题My aunt said that she couldn"t stand being kept waiting.

单选题I did remember, but only dimly .

单选题Superconducting Ceramic (陶瓷) An underground revolution begins this winter. With the flip (轻击) of a switch, 30,000 homes in one part of Detroit will soon become the first in the country to receive electricity transmitted by ice-cold high-performance cables. Other American cities are expected to follow Detroit's example in the years ahead, which could conserve enormous amounts of power. The new electrical cables at the Frisbie power station in Detroit are revolutionary because they are made of superconductors. A superconductor is a material that transmits electricity with little or no resistance. Resistance is the degree to which a substance resists electric current. All common electrical conductors have a certain amount of electrical resistance. They convert at least some of the electrical energy passing through them into waste heat. Superconductors don't. No one understands how superconductivity works. It just does. Making superconductors isn't easy. A superconducting material has to be cooled to an extremely low temperature to lose its resistance. The first superconductors, made more than 50 years ago, had to be cooled to -263 degrees Celsius before they lost their resistance. Newer superconducting materials lose their resistance at -143 degrees Celsius. The superconductors cable installed at the Frisbie station is made of a ceramic material that contains copper, oxygen, bismuth (铋), strontium (锶) and calcium (钙). A ceramic is a hard, strong compound made from clay or minerals. The superconducting ceramic has been fashioned into a tape that is wrapped lengthwise around a long tube filled with liquid nitrogen. Liquid nitrogen is supercold and lowers the temperature of the ceramic tape to the point where it conveys electricity with zero resistance. The United States loses an enormous amount of electricity each year to resistance. Because cooled superconductors have no resistance, they waste much less power. Other cities are watching the Frisbie experiment in the hope that they might switch to superconducting cable and conserve power, too.

单选题The atmosphere consists of _________.

单选题Jack is a {{U}}diligent{{/U}} student. A. ambitious B. hardworking C. lazy D. slow

单选题Poor health and lack of money may both be roadblocks to educational progress.

单选题The tower remains {{U}}intact{{/U}} ever after two hundred years. A. unknown B. unusual C. undamaged D. unstable

单选题Which of the following is true of the sand-buried landscape?

单选题The student has checked his test paper thoroughly.A. seldomB. quicklyC. completelyD. roughly

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。{{B}}第一篇{{/B}} Electric Backpack Backpacks are convenient. They can hold your books, your lunch, and a change of clothes, leaving your hands free to do other things. Someday, if you don't mind carrying a heavy load, your backpacks might also power your MP3 player, keep your cell phone' running, and maybe even light your way home. Lawrence C. Rome and his colleagues from the University of Pennsylvania in Philadelphia and the Marine Biological Laboratory in Woods Hole, Mass. , have invented a backpack that makes electricity from energy produced while its wearer walks. In military actions, search-and-rescue operations, and scientific field studies, people rely increasingly on cell phones, global positioning system (GPS) receivers, night-vision goggles, and other battery-powered devices to get around and do their work. The backpack's electricity-generating feature could dramatically reduce the amount of a wearer's load now devoted to spare batteries, report Rome and his colleagues in the Sept. 9 Science. The backpack's electricity-crew, ring powers depend on springs used to hang a cloth pack from its metal frame. The frame sits against the wearer's back, and the whole pack moves up and down as the person walks. A gear mechanism converts vertical movements of the pack to rotary motions of an electrical generator, producing up to 7.4 watts. Unexpectedly, tests showed that wearers of the new backpack alter their gaits in response to the pack's oscillations, so that they carry loads more comfortably and with less effort than they do ordinary backpacks. Because of that surprising advantage, Rome plans to commercialize both electric and non-electric versions of the backpack. The backpack could be especially useful for soldiers, scientists, mountaineers, and emergency workers who typically carry heavy backpacks. For the rest of us, power-generating backpacks could make it possible to walk, play video games, watch TV, and listen to music, all at the same time. Electricity-generating packs aren't on the market yet, but if you do get one eventually, just make sure to look both ways before crossing the street!

单选题George is very proud of his new Ustatus/U in the company.

单选题I am feeling a lot more healthy than I was.

单选题Since ancient times people have found various ways to preserve meat. A．eat B．cook C．freeze D．keep

单选题The fuel tanks had a capacity of 140 liters.

单选题Can you lend me some dollars? I just lack cash. A. short B. need C. waste D. arrange

单选题下面的短文有15处空白，请根据短文内容为每处空白确定1个最佳选项。 China to help Europe Develop GPS Rival China is to contribute to a new global satellite navigation system being developed by European nations. The Galileo satellite system {{U}}(51) {{/U}} a more accurate civilian alternative to the Global Positioning System(GPS), operated by the US military. China will provided 230m Euros (USD 259m) in {{U}}(52) {{/U}} and will cooperate with technical, manufacturing and market development. "China will help Galileo to {{U}}(53) {{/U}} the major world infrastructure for the growing market for location services, " said Loyola de Palacio, EU transport commissioner. A new center that will coordinate co-operation was also announced {{U}}(54) {{/U}}) the European Commission, the European Space Agency (ESA) and the Chinese Ministry of Science and Technology not long {{U}}(55) {{/U}}. The China-Europe Global Navigation Satellite System Technical Training and Cooperation Center will be {{U}}(56) {{/U}} at Beijing University. China has a substantial satellite launch industry and could potentially help the Galileo satellites. The US has claimed that Galileo could interfere {{U}}(57) {{/U}} the US ability to downgrade the GPS service during military conflicts. European officials say this is unfounded and counter that US opposition {{U}}(58) {{/U}} the commercial challenge Galileo would present to GPS. Galileo will be precise to within a meter, while civilian GPS service is accurate to around 10 meters. The Galileo satellite constellation will {{U}}(59) {{/U}} 27 operational and three reserve satellites orbiting the Earth at an altitude of 23,600 km. The satellites will be strung along three medium-Earth orbits at 56 degrees inclination to the equator and will provide global coverage. The system should be operational by 2008 and the entire project is expected to {{U}}(60) {{/U}} around 3.2 billion Euros(USD 3.6 billion). The European Commission has said Galileo will primarily be used for transportation technology, scientific research, land management and disaster monitoring. Galileo will provide two signals: a standard civilian one and an encrypted, wide-band signal {{U}}(61) {{/U}} the Public Regulated Service (PRS). This second signal is designed to withstand localized jamming and will be used by police and military services in Europe. European Commission {{U}}(62) {{/U}} have said China will not be given access to the PRS. The first Galileo satellite is scheduled to launch late in 2004, Clocks on board the {{U}}(63) {{/U}} Will be synchronized through 20 ground sensors stations, two command centers and 15 uplink stations. Receivers on the ground will use time signals from the satellites to precisely calculate their {{U}}(64) {{/U}}. A "search and rescue" function will also {{U}}(65) {{/U}} distress signals be relayed through the constellation of satellites.

单选题She Ustarted/U to clean the kitchen.