单选题When women do become managers, do they bring a different style and different skills to the job? Are they better, or worse, managers than men? Are women more highly 【C1】______than male managers? Some research【C2】______the idea that women bring different attitudes and skills to management jobs, such as greater【C3】______, an emphasis on affiliation and attachment, and a 【C4】______to bring emotional factors to bear【C5】______making workplace decisions. These differences are【C6】______to carry advantages for companies, 【C7】______they expand the range of techniques that can be used to【C8】______the company manage its workforce【C9】______. A study commissioned by the International Women's Forum【C10】______a management style used by some women managers(and also by some men)that【C11】______from the command-and- control style【C12】______used by male managers. Using this " interactive leadership" approach, "women【C13】______participation, share power and information, 【C14】______other people's self-worth, and get others excited about their work. All these 【C15】______reflect their belief that allowing【C16】______to contribute and to feel powerful and important is a win-win situation—good for the employees and the organization. "The study's director predicted that"interactive leadership may emerge as the management style of choice for many organizations. "

单选题Any normal species would be delighted at the prospect of cloning. No more nasty surprises like sickle cell or Down syndrome--just batch after hatch of high-grade and, genetically speaking, immortal offspring! But representatives of the human species are responding as if someone had proposed adding Satanism to the grade-school Curriculum. Suddenly, perfectly secular folks are throwing around words like sanctity and retrieving medieval-era arguments against the pride of science. No one has proposed burning him at the stake, but the poor fellow who induced a human embryo to double itself has virtually recanted--proclaiming his reverence for human life in a voice, this magazine reported," choking with emotion." There is an element of hypocrisy to much of the anti-cloning furor, or if not hypocrisy, superstition. The fact is we axe already well down the path leading to genetic manipulation of the creepiest sort. Life-forms can be patented, which means they can be bought and sold and potentially traded on the commodities markets. Human embryos are life-forms, and there is nothing to stop anyone from marketing them now, on the same shelf with the Cabbage Patch dolls. In fact, any culture that encourages in vitro fertilization has no right to complain about a market in embryos. The assumption behind the in vitro industry is that some people's genetic material is worth more than others' and deserves to be reproduced at any expense. Millions of low-income babies die every year from preventable ills like dysentery, while heroic efforts go into maintaining yuppie zygotes in test tubes at the unicellular stage. This is the dread "nightmare" of eugenics in familiar, marketplace form--which involves breeding the best-paid instead of the best. Cloning technology is an almost inevitable byproduct of in vitro fertilization. Once you decide to go to the trouble of in vitro, with its potentially hazardous megadoses of hormones for the female partner and various indignities for the male, you might as well make a few backup copies of any viable embryo that's produced. And once you've got the backup organ copies, why not keep a few in the freezer, in case Junior ever needs a new kidney or cornea? The critics of cloning say we should know what we're getting into, with all its Orwellian implications. But if we decide to outlaw cloning, we should understand the implications of that. We would be saying in effect that we prefer to leave genetic destiny to the crap shooting Of nature, despite sickle-cell anemia and Tay-Sachs and all the rest, because ultimately we don't trust the market to regulate life itself. And this may be the hardest thing of all to acknowledge, that it isn't so much 21st century technology we fear, as what will happen to that technology in the hands of old-fashioned 20th century capitalism.

单选题It is said that something was ______ way back when Enron CEO Jeffrey William departed the company only six months after being elevated to the post from CFO, but the president denied it last night.

单选题The law will go into ______ when the senator approves it.

单选题A translator with his eye on his readership is likely to under-translate , to use more general words in the interests of clarity, simplicity and sometimes brevity, which makes him " omit" to translate words altogether.

单选题Based on information in tile passage, the reader can conclude Violet's primary source of conflict stems from her ______.

单选题(200l)My bother is looking forward to______a trip to Shanghai next month.

单选题Although no one is Certain why migration occurs, there are several theories. One theory is based upon the premise that prehistoric birds of the northen Hemisphere were forced south during the Ice Age, when glaciers covered large parts of Europe, Asia, and North America. As the glaciers melted, the birds came back to their homelands, spent the summer, and then went south again as the ice advanced in winter In time, the migration became a habit, and now, although the glaciers have disappeared, the habit continues. Another theory proposes that the ancestral home of all modern birds was the tropics. When the region became overpopulated, many species were crowded north. During the summer, there was plenty of food, but during the winter, scarcity forced them to return to the tropics. A more recent theory, known as photoperiodism, suggests a relationship between increasing daylight and the stimulation of certain glands in the birds bodies that may prepare them for migration. One scientist has been able to cause midwinter migrations by exposing birds to artificial periods of daylight. He has concluded that changes occur in the bodies of birds due to seasonal changes in the length of daylight.

单选题Man: Look, the view is fantastic．Could you take a picture of me with the lake in the background? Woman: I'm afraid I just ran out of film. Question: What do we learn from the conversation?

单选题A new economics paper has some old-fashioned advice for people navigating the stresses of life: Find a spouse who is also your best friend. Social scientists have long known that 1 people tend to be happier, but they debate whether that is because marriage causes happiness or simply because happier people are more 2 to get married. The new paper, 3 by the National Bureau of Economic Research, controlled for pre-marriage happiness levels. It 4 that being married makes people happier and more satisfied 5 their lives than those who remain single—particularly during the most stressful periods, like 6 crises. Even as fewer people are marrying, the disadvantages of remaining single have broad 7 . It"s important 8 marriage is increasingly a force behind inequality. 9 marriages are more common among educated, high-income people, and increasingly out of reach for those who are not. That divide appears to 10 not just people"s income and family stability, but also their happiness and stress levels. A quarter of today"s young adults will have never married by 2030, which would be the highest 11 in modern history, according to Pew Research Center. 12 both remaining unmarried and divorcing are more common among less-educated, lower-income people. 13 , high-income people still marry at high rates and are less likely to divorce. Those whose lives are most difficult could 14 most from marriage, according to the economists who wrote the new paper, John Helliwell and Shawn Grover. "Marriage may be most important when there is that stress in life and when things are going 15 ," Mr. Grover said. 16 marital happiness long outlasted the honeymoon period. 17 some social scientists have argued that happiness levels are innate, so people return to their natural level of well-being 18 joyful or upsetting events, the researchers found that the benefits of marriage persist. One 19 for that might be the role of friendship within marriage. Those who 20 their spouse or partner to be their best friend get about twice as much life satisfaction from marriage as others, the study found.

单选题On the top was the clear outline of a great wolf, sitting still, ears ______, alert, listening.

单选题Fire, the phenomenon of combustion A as observed in light, flame, and heat, B it is one of the C basic tools D of mankind .

单选题Many local citizens wrote to the mayor, complaining that the police were always failing to take adequate measures to______the growth in crime.

单选题The editor considered the author's analysis in his article to be {{U}}penetrating{{/U}}.

单选题Many foreigners who have not visited Britain call all the inhabitants English, for they are used to thinking of the British Isles as England. (1) , the British Isles contain a variety of peoples, and only the people of England call themselves English. The others (2) to themselves as Welsh, Scottish, or Irish, (3) the case may be; they are often slightly annoyed (4) being classified as "English".Even in England there are many (5) in regional character and speech. The chief (6) is between southern England and northern England. South of a (7) going from Bristol to London, people speak the type of English usually learnt by foreign students, (8) there are local variations. Further north, regional speech is usually" (9) "than that of southern Britain. Northerners are (10) to claim that they work harder than Southerners, and are more (11) They are openhearted and hospitable; foreigners often find that they make friends with them (12) . Northerners generally have hearty (13) : the visitor to Lancashire or Yorkshire, for instance, may look forward to receiving generous (14) at meal times. In accent and character the people of the Midlands (15) a gradual change from the southern to the northern type of Englishman. In Scotland the sound (16) by the letter "R" is generally a strong sound, and "R" is often pronounced in words in which it would be (17) in southern English. The Scots are said to be a serious, cautious, thrifty people, (18) inventive and somewhat mystical. All the Celtic peoples of Britain (the Welsh, the Irish, the Scots) are frequently (19) as being more "fiery" than the English. They are (20) a race that is quite distinct from the English.

单选题For the people who have never traveled across the Atlantic the voyage is a fantasy. But for the people who cross it frequently one crossing of the Atlantic is very much like another, and they do not make the voyage for the (56) of its interest. Most of us are quite happy when we feel (57) to go to bed and pleased when the journey (58) . On the first night this time I felt especially lazy and went to bed (59) earlier than usual. When I (60) my cabin, I was surprised (61) that I was to have a companion during my trip, which made me feel a little unhappy. I had expected (62) but there was a suitcase (63) mine in the opposite corner. I wondered who he could be and what he would be like. Soon afterwards he came in. He was the sort of man you might meet (64) , except that he was wearing (65) good clothes that I made up my mind that we would not (66) whoever he was and did not say (67) . As I had expected, he did not talk to me either but went to bed immediately. I suppose I slept for several hours because when I woke up it was already the middle of the night. I felt cold but covered (68) as well as I could and tried to go back to sleep. Then I realized that a (69) was coming from the window opposite. I thought perhaps I had forgotten (70) the door, so I got up (71) the door but found it already locked from the inside. The cold air was coming from the window opposite. I crossed the room and (72) the moon shone through it on to the other bed. (73) there. It took me a minute or two to (74) the door myself. I realized that my companion (75) through the window into the sea.

单选题Cellular slime molds are extraordinary life forms that exhibit features of both fungi and protozoa, although often classed for convenience with fungi. At one time they were regarded as organisms of ambiguous taxonomic status, but more recent analysis of DNA sequences has shown that slime molds should be regarded as inhabiting their own separate kingdom. Their uniqueness lies in their unusual life cycle, which alternates between a feeding stage in which the organism is essentially unicellular and a reproductive stage in which the organism adopts a multicellular structure. At the first stage they are free-living, separate amoebae, usually inhabiting the forest floor and ingesting bacteria found in rotting wood, dung, or damp soil. But their food supplies are relatively easily exhausted since the cells' movements are restricted and their food requirements rather large. When the cells become starved of nutrition, the organism initiates a new genetic program that permits the cells to eventually find a new, food-rich environment. At this point, the single-celled amoebae combine together to form what will eventually become a multicellular creature. The mechanism by which the individual members become a single entity is essentially chemical in nature. At first, a few of the amoebae start to produce periodic chemical pulses that are detected, amplified, and relayed to the surrounding members, which then move toward the pulse origin. In time, these cells form many streams of cells, which then come together to form a single hemispherical mass. This mass sticks together through the secretion of adhesion molecules. The mass now develops a tip, which elongates into a finger-like structure of about 1 or 2 millimeters in length. This structure eventually falls over to form a miniature slug, moving as a single entity orienting itself toward light. During this period the cells within the mass differentiate into two distinct kinds of cell. Some become prestalk cells, which later form into a vertical stalk, and others form prespore cells, which become the spore head. As the organism migrates, it leaves behind a track of slime rather like a garden slug. Once a favorable location has been found with a fresh source of bacteria to feed on, the migration stops and the colony metamorphoses into a fungus-like organism in a process known as "culmination." The front cells turn into a stalk, and the back cells climb up the stalk and form a spherical-shaped head, known as the sorocarp. This final fruiting body is about 2 millimeters in height. The head develops into spores, which are dispersed into the environment and form the next generation of amoebae cells. Then the life cycle is repeated. Usually the stalk disappears once the spores have been released. The process by which the originally identical cells of the slime mold become transformed into multicellular structures composed of two different cell types — spore and stalk — is of great interest to developmental biologists since it is analogous to an important process found in higher organisms in which organs with highly specialized functions are formed from unspecialized stem cells. Early experiments showed which parts of the slime mold organism contributed to the eventual stalk and which parts to the head. Scientists stained the front part of a slug with a red dye and attached it to the back part of a different slug. The hybrid creature developed as normal. The experimenters then noted that the stalk of the fruiting body was stained red and that the spore head was unstained. Clearly, the anterior part of the organism culminated in the stalk and the posterior part in the spore head. Nowadays, experiments using DNA technology and fluorescent proteins or enzymes to label the prespore and prestalk cells have been undertaken. This more molecular approach gives more precise results than using staining dyes but has essentially backed up the results of the earlier dye studies.