单选题The bread must be very old, Its very dry and ______. A) stale B) shabby C) barren D) fresh

单选题 It never rains but it pours. Just as bosses and boards have finally sorted out their worst accounting and compliance troubles, and improved their feeble corporation governance, a new problem threatens to earn them--especially in America--the sort of nasty headlines that inevitably lead to heads rolling in the executive suite: data insecurity. Left, until now, to odd, low-level IT staff to put right, and seen as a concern only of data-rich industries such as banking, telecoms and air travel, information protection is now high on the boss's agenda in businesses of every variety. Several massive leakages of customer and employee data this year--from organizations as diverse as Time Warner, the American defense contractor Science Applications International Corp and even the University of California. Berkeley--have left managers hurriedly peering into their intricate 11 systems and business processes in search of potential vulnerabilities. "Data is becoming an asset which needs no be guarded as much as any other asset." says I am Mendelson of Stanford University's business school. "The ability guard customer data is the key to market value, which the board is responsible for on behalf of shareholders". Indeed, just as there is the concept of Generally Accepted Accounting Principles (GAAP), perhaps it is time for GASP. Generally Accepted Security Practices, suggested Eli Noam of New York's Columbia Business School. "Setting the proper investment level for security, redundancy, and recovery is a management issue, not a technical one." he says. The mystery is that this should come as a surprise to any boss. Surely it should be obvious to the dimmest executive that trust, that most valuable of economic assets, is easily destroyed and hugely expensive to restore--and that few things are more likely to destroy trust than a company letting sensitive personal data get into the wrong hands. The current state of affairs may have been encouraged--though not justified--by the lack of legal penalty (in America, but not Europe) for data leakage. Until California recently passed a law, American firms did not have to tell anyone, even the victim, when data went astray. That may change fast lots of proposed data-security legislation now doing the rounds in Washington. D. C. Meanwhile, the theft of information about some 40 million credit-card accounts in America, disclosed on June 17th, overshadowed a hugely important decision a day earlier by America's Federal Trade Commission (FTC) that puts corporate America on notice that regulators will act if firms fail to provide adequate data security.

单选题She was depressed by the______ fog-bound scene on the waterfront and felt even more lonely. A. curious B somber C. natural D. global

单选题According to the writer, the exactness of a science is partly related to ______.

单选题_________ is a typical feature of Swift’s writings.

单选题A. successB. accidentC. accordingD. accept

单选题He got up to the roof ______ a ladder.A. by all meansB. by any meansC. by means ofD. by no means

单选题Starting a new business can be a risky______.

单选题He has been resisting ______ pressure to resign as the head of the organization. A. extensive B. external C. extrovert D. exterior

单选题Speaker A: Is there anything I can do for you? Speaker B: ______, there is something.

单选题______abolished slavery in the U. S.

单选题{{B}}Text 3{{/B}} Some oil companies plan to get rid of some of the pollution they produce by pumping it into rocks deep inside the Earth, where they say it will stay for thousands of years. Other people, though, aren't so sure this is advisable; environmental groups say that putting this pollution back into the Earth is a bad idea. When oil burns, it doesn't just produce heat: it also produces carbon dioxide. Carbon dioxide is a natural part of the air, but because people burn so much oil, there's too much carbon dioxide in the air. This extra carbon dioxide is pollution; some scientific studies show that carbon dioxide is one of the "greenhouse gases 'that is causing the Earth's temperature to rise. Environmentalists say that the oil companies' plans may not work. The oil companies say they are making sure that the gas will never escape, but environmentalists wonder how the oil companies can be so sure that the gas won' t seep into the air. They also point out that there's no way to check to make sure the gas isn't leaking. In addition, the environmentalists point out that the pumping costs money—for research and for equipment—that the oil companies should be spending on preventing pollution, rather than on just moving it someplace else. Another problem, say some people who are concerned about the Earth, is that if the oil companies find a cheap way to get rid of their pollution, they won' t look for new kinds of energy. These environmentalists say that energy companies should be researching ways to use hydrogen, wind power, and solar power instead of finding better ways to use oil. They argue that continuing to use oil means that we will still need to buy oil from other countries instead of producing our own cheap, clean energy. Environmentalists also say that burying pollution just pushes the problem into the future, rather than really solving it. They say that if the oil companies pump carbon dioxide into the rocks inside the Earth, it will be there for thousands of years, and that no one knows if this plan—even if it works—might turn into a pollution problem for all of us in the future. The oil companies insist that their plan is safe, and that putting the gas inside the Earth is a reasonable way to deal with it. They point out that there is a lot of room in the Earth for this extra gas, and that putting carbon dioxide inside the Earth means that the gas won' t be in the air, and if it' s not in the air, it won' t make the Earth warmer.

单选题There is a definite possibility that the climate of the world may be changing. Some scientists imagine that this could even mean the beginning of another ice age. The effects of such a change in climate on the human population of the world would be startling. Recent research suggests that the general warming trend of the past hundred years or so may be coming to an end. During the past ten years, meteorologists tell us the average temperature of the earth has dropped about one degree Fahrenheit. This does not seem like much, but it could have effects on wind and rain patterns which influence the overall weather picture. If these patterns change a lot, it could mean that certain regions of the world may continue to have long droughts while others will possibly suffer from widespread flooding. What regulates the climate is not exactly known. Meteorologists believe that clouds may be an important factor in regulating the amount of solar heat held by the earth, which in turn determines the temperature of the planet. Another possibility is that man' s industrial and agricultural methods may be affecting the natural weather patterns. However, the weather is not understood well enough for scientists to say for certain what is happening to the climate and what side effects this will actually have on the world' s population.

单选题You have to do your homework when it _______ employing staff for the first time.

单选题[此试题无题干]

单选题We have been hearing ______ accounts of your work.(2008年北京大学考博试题)

单选题[Focus on the felicity conditions of speech act perfonnance] A. truth condition B. sincerity condition C. essential condition D. preparatory condition

单选题Can you lend me some money? I have ______ my salary