单选题Jack: I'd like a haircut, please. Barber: Would you care for a shave and a shampoo as well7 Jack: ______. A haircut will be just fine.

单选题He as well as I ______ you on that point.

单选题 The unique human habit of taking in and employing animals—even competitors like wolves—spurred on human tool-making and language, which have both driven humanity's success, Pat Shipman says, paleoanthropologist of Penn State University. 'Wherever you go in the world, whatever ecosystem (生态系统) , whatever culture, people live with animals,' Shipman said. For early humans, taking in and caring for animals would seem like a poor strategy for survival. 'On the face of it, you are wasting your resources. So this is a very weird behavior,' Shipman said. But it's not so weird in the context something else humans were doing about 2.6 million years ago: switching from a mostly vegetarian diet to one rich in meat. This happened because humans invented stone hunting tools that enabled them to compete with other top predators. Quite a rapid and bizarre switch for any animal. So we invented the equipment, learned how to track and kill, and eventually took in animals who also knew how to hunt—like wolves and other canines. Others, like goats, cows and horses, provided milk, hair and, finally, hides and meat. Managing all of these animals—or just tracking them—requires technology, knowledge and ways to preserve and convey information. So languages had to develop and evolve to meet the challenges. Tracking game has even been argued to be the origin of scientific inquiry, said Peter Richerson, professor emeritus (名誉退休的) in the Department of Environmental Science and Policy at the University of California, Davis. One of the signs that this happened is in petroglyphs (史前岩画) and other rock art left by ancient peoples. At first they were abstract, geometric patterns that are impossible to decipher (翻译). Then they converge on one subject: animals. There have also been genetic changes in both humans and our animals. For the animals those changes developed because human bred them for specific traits, like a cow that gives more milk or a hen that lays more eggs. But this evolutionary influence works both ways. Dogs, for instance, might have been selectively taken in by humans who shared genes for more compassion. Those humans then prospered with the dogs' help in hunting and securing their homes.

单选题In the______of the project not being a success, the investors stand to lose up to ﹩30 million. A. face B. time C. event D. course

单选题The United States is often considered a young nation, but in fact it is next to the oldest continuous government in the world, and the reason is that its people have always been willing to accommodate themselves to change. It should be realized, however, that sharing benefits of our achievements was the result of trial and error. Unprincipled businessmen had first to be restrained by government before they came to learn that they must serve the general good in pursuing their economic interests. Thus, although early statesmen strongly believed in private enterprise, they chose to make the post office a government monopoly and to give the schools to public ownership. Since then, government has broadened its activities in many ways including preventing monopolies from taking over the economy. Increased growth by acquisition by our largest corporations has resulted in a situation where virtually independent economic giants will dominate the American economy. Growth of these vast corporate structures, even though accompanied by an increase in the number of much smaller and less powerful companies that operate under their control, foretells the creation of monopoly—like structures throughout American business. In general, the major acquisitions by the sample companies were corporate organizations that were profitable and successful before acquisition. The main effect of the merger or acquisition was to transfer control and management of an already successful enterprise to a new group. Profitability ratios indicate that, in most instances, the acquired companies operated less efficiently after acquisition. Americans hold with Lincoln that "the legitimate object of government is to do for a community of people whatever they need to have done but cannot do at all, or cannot do so well for themselves, in their separate and individual capacities." Clearly merger restriction is one example of legitimate government intervention.

单选题She didn't know ______.

单选题________________________ Don 't touch that wire,it’s .

单选题We are taught that a business letter should be written in a formal style ______ in a personal one.

单选题Tim has given up his own writing and radio interests to pick you up off the ground and ______ you to the stature which he truly thought you deserved.

单选题Five score years ago, a great American, ______ symbolic shadow we stand, signed the Emancipation Proclamation. A. with his B. in whose C. by him D. of whom

单选题The Princess DiseaseHave you ever heard of the princess disease? It is a terrible disease. __26__ It wastes away at ones social life and peoples tolerance. People with this disease think the

单选题Richard doesn't think he could ever______what is called "free-style" poetry.

单选题The views of Ravitch and Emerson on schooling are ______.

单选题 Now listen to the following recording and answer questions16-18.

单选题Envy and jealousy of other people and their lives become ______ once you start believing in yourself.

单选题Adams now maintains that it is less important to save the nation ______ to a perilous future. ( )

单选题It was almost dark in the street ( ) a few spotlights.

单选题That job is quite difficult. I can understand why you have ______ so many problems. ( )

单选题Grandpa: Robbie, we'll go fishing soon, and we'll take 5tour dad with us. Grandson: I'm ready, Grandpa.______. A. Yon name the day I3. Enjoy yourselves C. You can't miss it D. Take your time