单选题______for your laziness, you could have finished the assignment by now.

单选题Unfortunately, most public places are simply not geared ______the needs of people with disabilities.

单选题Any decline in the number of game birds was due to______habitat, over-grazing and th loss of heather moorland.

单选题Most of us are taught to pay attention to what is said — the words. Words do provide us with some information, but meanings are derived from so many other sources that it would hinder our effectiveness as a partner to a relationship to rely too heavily on words alone. Words are used to describe only a small part of the many ideas we associate with any given message. Sometimes we can gain insight into some of those associations if we listen for more than words. We don't always say what we mean or mean what we say. Sometimes our words don't mean anything except "I'm letting off some steam. I don't really want you to pay close attention to what I'm saying. Just pay attention to what I'm feeling." Mostly we mean several things at once. A person wanting to purchase a house says to the current owner, "This step has to be fixed before I'll buy. "The owner says, "It's been like that for years." Actually, the step hasn't been like that for years, but the unspoken message is; "I don't want to fix it. We put up with it. Why can't you?" The search for a more expansive view of meaning can be developed through examining a message in terms of who said it, when it occurred, the related conditions or situation, and how it was said. When a message occurs can also reveal associated meaning. Let us assume two couples do exactly the same amount of kissing and arguing. But one couple always kisses after an argument and the other couple always argues after a kiss. The ordering of the behaviors may mean a great deal more than the frequency of the behavior. A friend's unusually docile behavior may only be understood by noting that it was preceded by situations that required an abnormal amount of assertiveness. Some responses may be directly linked to a developing pattern of responses and defy logic. For example, a person who says " No!" to a serials of charges like "You're dumb," "You're lazy," and "You're dishonest," may also say "No!" and try to justify his or her response if the next statement is " And you're good looking. " We would do well to listen for how messages are presented. The words, "It sure has been nice to have you over," can be said with emphasis and excitement or ritualistically. The phrase can be said once or repeated several times. And the meanings we associate with the phrase will change accordingly. Sometimes if we say something infrequently it assumes more importance; sometimes the more we say something the less importance it assumes.

单选题Government loan have been the______of several shaky business companies.

单选题Can electricity cause cancer? In a society that literally runs on electric power, the very idea seems preposterous. But for more than a decade, a growing band of scientists and journalists has pointed to studies that seem to link exposure to electromagnetic fields with increased risk of leukemia and other malignancies. The implications are unsettling, to say the least, since everyone comes into contact with such fields, which are generated by everything electrical, from power lines and antennas to personal computers and micro-wave ovens. Because evidence on the subject is inconclusive and often contradictory, it has been hard to decide whether concern about the health effects of electricity is legitimate — or the worst kind of paranoia. Now the alarmists have gained some qualified support from the U. S. Environmental Protection Agency. In the executive summary of a new scientific review, released in draft form late last week, the EPA has put forward what amounts to the most serious government warning to date. The agency tentatively concludes that scientific evidence "suggests a casual link" between extremely low-frequency electromagnetic fields — those having very long wave lengths — and leukemia, lymphoma and brain cancer. While the report falls short of classifying ELF fields as probable carcinogens, it does identify the common 60-hertz magnetic field as " a possible , but not proven, cause of cancer in humans. " The report is no reason to panic — or even to lost sleep. If there is a cancer risk, it is a small one. The evidence is still so controversial that the draft stirred a great deal of debate within the government, and the EPA released it over strong objections from the Pentagon and the White House. But now no one can deny that the issue must be taken seriously and that much more research is needed. At the heart of the debate is a simple and well-understood physical phenomenon: When an electric current passes through a wire, it generates an electromagnetic field that exerts forces on surrounding objects. For many years, scientists dismissed any suggestion that such forces might be harmful, primarily because they are so extraordinarily weak. The ELF magnetic field generated by a video terminal measures only a few milligauss, or about one-hundredth the strength of the earth's own magnetic field. The electric fields surrounding a power line can be as high as 10 kilo volts per meter, but the corresponding field induced in human cells will be only about 1 millivolt per meter. This is far less than the electric fields that the cells themselves generate. How could such minuscule forces pose a health danger? The consensus used to be that they could not, and for decades scientists concentrated on more powerful kinds of radiation, like X-rays, that pack sufficient wallop to knock electrons out of the molecules that make up the human body. Such "ionizing" radiations have been clearly linked to increased cancer risks and there are regulations to control emissions. But epidemiological studies, which find statistical associations between sets of data, do not prove cause and effect. Though there is a body of laboratory work showing that exposure to ELF fields can have biological effects on animal tissues, a mechanism by which those effects could lead to cancerous growths has never been found. The Pentagon is far from persuaded. In a blistering 33-page critique of the EPA report, Air Force scientists charge its authors with having "biased the entire document" toward proving a link. "Our reviewers are convinced that there is no suggestion that (electromagnetic fields) present in the environment induce or promote cancer," the Air Force concludes. "It is astonishing that the EPA would lend its imprimatur on this report." Then Pentagon's concern is understandable. There is hardly a unit of the modern military that does not depend on the heavy use of some kind of electronic equipment, from huge ground-based radar towers to the defense systems built into every warship and plane.

单选题There are plenty of expensive and exclusive clubs the world over who can annually relieve you ______ large quantities of money in exchange for the use of their carefully tended ground.

单选题The driver was baffled when his turn signal wouldn't work.

单选题While the population of the United States includes a great variety of racial and ethnic backgrounds, Japan"s population is ______.

单选题I"ve got a big coffee ______ on the front of my dress.

单选题We can see monuments here and there. Those who have made great ______ to human beings and society will never be forgotten. A. advance B. progress C. contributions D. achievement

单选题That old hat of his is a ______joke to all his friends.

单选题When Adolph Ochs became the publisher of The New York Times, he endowed the paper with a uniquely ______ tone, avoiding the ______ editorials that characterized other major papers of the time. A. abstruse...scholarly B. dispassionate...shrill C. argumentative...tendentious D. cosmopolitan...timely

单选题Do you know Tim's brother? He is ______ than Tim. A. much more sportsman B. more of a sportsman C. more of sportsman D. more a sportsman

单选题When she saw how frightened he was at his mistake, her anger began to______.

单选题They______the mounting evidence of discrepancies in the report as justifying a new investigation.

单选题While play is important at all levels of human development, ______ takes on particular significance when children are five and six years old.

单选题And that"s not the case with the program ______ now.

单选题______on a clear day, far from the city crowds, the mountains give him a sense of infinite peace.

单选题The Carnegie Foundation report says that many colleges have tried to be "all things to all people". In doing so, they have increasingly catered to a narrow minded careerism while failing to cultivate a global vision among their students. The current crisis, it contends, does not derive from a legitimate desire to put learning to productive ends. The problem is that in too many academic fields, the work has no context; skills, rather than being means, have become ends. Students are offered a variety of options and allowed to pick their way to a degree. In short, driven by careerism, " the nation"s colleges and universities are more successful in providing credentials than in providing a quality education for their students. " The report concludes that the special challenge confronting the undergraduate college is one of shaping an "integrated core" of common learning. Such a core would introduce students "to essential knowledge, to connections across the disciplines, and in the end, to application of knowledge to life beyond the campus. " Although the key to a good college is a high-quality faculty, the Carnegie study found that most colleges do very little to encourage good teaching. In fact, they do much to undermine it. As one professor observed: " Teaching is important, we are told, and yet faculty know that research and publication matter most. " Not surprisingly, over the last twenty years colleges and universities have failed to graduate half of their four-year degree candidates. Faculty members who dedicated themselves to teaching soon discover that they will not be granted tenure, promotion, or substantial salary increases. Yet 70 percent of all faculties say their interests lie more in teaching than in research. Additionally, a frequent complaint among young scholars is that " There is pressure to publish, although there is virtually no interest among administrators or colleagues in the content of the publications. "