首页 > 成人高考

题目内容（请给出正确答案）

[主观题]

A recent development is the local area network （LAN).【21】its name implies, it serves a loc

A recent development is the local area network (LAN).【21】its name implies, it serves a local area-possibly as small as a single room, typically an area like an university campus or the premises of a particular business. Local area networks were developed to【22】a need specific to microcomputers the sharing of expensive resources. Microcomputers are cheap, but highcapacity disc stores, fast and/or good quality printers, etc. are expensive. The object of the LAN is to allow【23】microcomputers shared access to these expensive resources, since the microcomputers are cheap, it is a necessary feature of a LAN that the method of connection to the network, and the network hardware【24】, must also be cheap.

A local area network links a number of computers and a number of servers which provide communal facilities, e. g. file storage. (A server usually includes a small microprocessor for control purposes. ) The computers and servers are known as stations. There are two methods of【25】in common use, rings and broadcast networks.

In the ring method(often called a Cambridge Ring) all the stations are linked in a ring,【26】includes one special station, the monitor station.

In broadcast networks, all the stations are【27】to a single linear cable(usually coax cable), and any transmission will be received by all stations.

【28】technology is used, local area networks are a development of the greatest importance.【29】as programming is simplified by an approach that thinks in terms of small procedures or programs, each doing a well-defined job, the computer system of tomorrow is likely to be【30】lots of small systems, each doing a specific job, linked by a local area network.

(61)

A．As

B．Like

C．Since

D．Because

查看答案

如果结果不匹配，请联系老师获取答案

您可能会需要：

重置密码查看订单联系客服

安装优题宝APP，拍照搜题省时又省心！

更多“A recent development is the lo…”相关的问题

第1题

The huge increase in oil prices in recent months cast a cloud over the development pl

A.A.近几个月来的石油价钱上的庞大的增加，对许多经济的进展计划投下乌云

B.B.近几个月来的石油价钱猛涨，对许多国家的经济进展计划投下了一抹阴影

点击查看答案

第2题

The author's view on the historical development of toys is ______.A．the craftsmanship in t

The author's view on the historical development of toys is ______.

A．the craftsmanship in toy - making has remained essentially unchanged

B．toys have remained basically the same all through the centuries

C．the toy industry has witnessed great leaps in technology in recent years

D．toys are playing an increasingly important role in shaping a child's character

点击查看答案

第3题

The age at which young children begin to make moral discriminations about harmful actions

committed against themselves or others has been the focus of recent research into the moral development of children. Until recently, child psychologists supported pioneer developmentalist Jean Piaget in his hypothesis that because of their immaturity, children under age seven do not take into account the intentions of a person committing accidental or deliberate harm, but rather simply assign punishment for offences on the basis of the magnitude of the negative consequences cause.

According to Piaget, children under age seven occupy the first stage of moral development, which is characterized by moral absolutism (rules made by authorities must be obeyed) and imminent justice (if rules are broken, punishment will be meted out). Until young children mature, their moral judgments are based entirely on the effect rather than the cause of an offence. However, in recent research, Keasey found that six-year-old children not only distinguish between accidental and intentional harm, but also judge intentional harm as naughtier, regardless of the amount of damage produced. Both of these findings seem to indicate that children, at an earlier age than Piaget claimed, advance into the second stage of moral development, moral autonomy, in which they accept social rules but view them as more arbitrary than do children in the first stage.

Keasey's research raises two key questions for developmental psychologists about children under age seven: do they recognize justifications for harmful actions, and do they make distinctions between harmful acts that are preventable and those acts that have unforeseen harmful consequences？ Studies indicate that justifications excusing harmful actions might include public duty, self-defense, and provocation. For example, Nesdale and Rule concluded that children were capable of considering whether or not an aggressor's actions was justified by public duty: five year olds reacted very differently to "Bonnie wrecks Ann's pretend house" depending on whether Bonnie did it "so somebody won't fall over it" or because Bonnie wanted "to make Anne feel bad." Thus, a child of five begins to understand that certain harmful actions, though intentional, can be justified: the constraints of moral absolutism no longer solely guide their judgments.

Psychologists have determined that during kindergarten children learn to make subtle distinctions involving harm. Darley observed that among acts involving unintentional harm, six-year-old children just entering kindergarten could not differentiate between foreseeable, and thus preventable, harm and unforeseeable harm for which the offender cannot be blamed. Seven months later, however, Darley found that these same children could make both distinctions, thus demonstrating that they had become morally autonomous.

As to the punishment that children under seven are assigned to wrongdoing, Piaget suggests

A．the punishment is to be administered immediately following the offence.

B．the more immature a child, the more severe the punishment assigned.

C．the punishment for acts of intentional harm is less severe than it is for acts involving accidental harm.

D．the severity of the assigned punishment is primarily determined by the perceived magnitude of negative consequences.

点击查看答案

第4题

For the most part, rapid economic development has been a favor. But there is a down side t

o development—health problems such as overweight are all becoming more common, as more people take taxis to work instead of riding their bicycles, and other labour-saving devices become more popular.

An increasingly fast pace of life makes it difficult for people to spend time playing sports. " I know exercise is good for your health, " a young lady said, " But after a busy work week, the only thing I want to do is watching TV and going to sleep. " That attitude may explain the results of a recent nationwide study, which suggested 15 percent of urban adults in China have heart problems.

Local researchers found that 31. 2 percent of elderly respondents were getting enough exercise, but less than 9 percent of youngsters and the middle-aged got enough physical activity.

Elderly people understand the importance of protecting their health. The young people, however, are busy working and use this as an excuse to avoid exercise. In fact, physical exercise doesn't require much time, money or a special gymnasium. People can make use of any time and any place at their convenience to take part in sports. Walking quickly, cycling, climbing the stairs and dancing are all helpful methods to improve one's health.

The benefits of adding a little more activity to your life are priceless. " There is no need to be an athlete (运动员) , however, "a local doctor said. People should walk for 30 minutes a day and take part in some other physical activities three to five times a week. He warns, however, that people in poor physical shape should start slowly, and build up over time.

By referring to rapid economic development as "a favor" at the beginning of the passage, the author means that______ .

A．it has benefited the general public greatly

B．it has done harm to people's health nationwide

C．it is going faster than anyone could have imagined

D．it has helped to establish a healthy lifestyle. of the public

点击查看答案

第5题

Each advance in microscopic technique has provided...

Each advance in microscopic technique has provided scientists with new perspectives on the function of living organisms and the nature of matter itself. The invention of the visible-light microscope late in the sixteenth century introduced a previously unknown realm of single celled plants and animals. In the twentieth century, electron microscope have provided direct views of viruses and minuscule surface structures. Now another type of microscope, one that utilizes X rays rather than light or electrons, offers a different way of examining tiny de tails; it should extend human perception still farther into the natural world.

The dream of building an X-ray microscope dates to 1895; its development, however, was virtually halted in the 1940's because the development of the electron microscope was progressing rapidly. During the 1940's, electron microscopes routinely achieved resolution better than that possible with a visible-light microscope, while the performance of X-ray microscopes resisted improvement. In recent years, however, interest in X-ray microscopes has revived, largely because of advances such as the development of new sources of X-ray illumination. As a result, the brightness available today is millions, of times that of X-ray tubes, which, for most of the century, were the only avail able sources of soft X-rays.

The new X-ray microscopes considerably improve on the resolution provided by optical microscopes. They can also be used to map the distribution of certain chemical elements. Some can form. pictures in extremely short times; others hold the promise of special capabilities such as three-dimensional imaging. Unlike conventional electron microscopy, X-ray microscopy enables specimens to be kept in air and in water, which means that biological samples can be studied under conditions similar to their natural state. The illumination used, so-called soft X rays in the wavelength range of twenty to forty angstroms (an angstrom is one ten-billionth of a meter), is also sufficiently penetrating to, image intact biological cells in many cases. Because of the wavelength of the X rays used, soft X-ray microscopes will never match the highest resolution possible with electron microscopes. Rather, their special properties will make possible investigations that will complement those performed with light-and-electron-based instruments.

What does the passage mainly discuss？

A．The detail seen through a microscope.

B．Sources of illumination for microscopes.

C．A new kind of microscope.

D．Outdated microscopic techniques.

点击查看答案

第6题

The twin English passions for gardening and long muddy walks may seem puzzling to foreigne

rs, yet they are easily explained in terms of a favourite economist's concept: scarcity. Most other nations have lots of countryside. England doesn't, and therefore its people prize the stuff. One consequence of the rural romance is a word which exists only in English and describes those with a particular sort of hostility to development: Nimbys, who don't mind new housing so long as it is Not In My Back Yard. Another consequence is a problem for the government.

Compared with its neighbours' economies, Britain's has been doing very nicely in recent years. Only one big threat looms: the possibility of a bust in the overheated and volatile housing market, which could feed through to the rest of the economy and lead to recession, as happened in the early 1990s. The government reckons that one reason why house prices have been rising so fast, particularly in the south-east of England, is that, while real wages have been going up and foreigners pouring in, little new housing is being built.

Nimbyism helps explain the shortage of new housing in the south-east. People living in pretty villages don't want new estates on their doorstep. After all, they spent their hard-earned cash on a view of rolling acres, not of spanking new red-tiled roofs. Nimbys' hostility to development acquires legal force through the planning system, which has, in large part, been controlled by elected local authorities.

Although some big new developments—including the first new towns since the early 1970s—are getting the go-ahead, others are hard-fought. The government's solution is to undermine local planning powers. The new Planning and Compulsory Purchase Act, which starts to come into force next month, shifts power from elected county councils to unelected regional bodies, and gives statutory force to the government's estimates of the number of new houses needed in different bits of the country. That will make it harder for councils in overheated areas to turn down developers.

The government is right that the planning system is excessively biased against growth: existing property-owners, who control the system through local authorities, have little interest in sanctioning developments which may reduce the value of their houses. But the government was wrong to go about lowering the barriers to development by talking power away from local authorities, thus further centralizing Britain's already far-too-centralised political system.

According to the text, Downing Street No. 10 is in an awkward predicament of

A．real estate development.

B．gardening expansion.

C．hostility to scarcity.

D．economic recession.

点击查看答案

第7题

"I get by with a little help from my friends" is a popular lyric（抒情诗) with age-old wisd

"I get by with a little help from my friends" is a popular lyric(抒情诗) with age-old wisdom behind it. 【B1】______ people need people is something we have 【B2】______ understood, but more recent research has confirmed the relationship 【B3】______ good health and good social relationships. 【B4】______ infants, the lack of human interaction may 【B5】______ retard (阻滞) the development of intelligence. Adults who seek supportive social relationships find greater longevity(长寿) and have 【B6】______ chances of developing a disease.

Most of us 【B7】______ develop relationships to increase our life spans 【B8】______ to improve our minds and bodies. Such improvements are side 【B9】______ . Instead, most people seek relationships 【B10】______ others to feel love, gain companionship, or simply to have fun. Mutual interests can be a 【B11】______ for new relationships. A good 【B12】______ to find new friends is to get busy 【B13】______ the things you love to do. That way, you're 【B14】______ to meet more people who 【B15】______ a similar interest and a similar view of the world.

A good relationship helps you feel lovable and capable. It 【B16】______ as a support system, 【B17】______ you to develop your full potential 【B18】______ a person. One of the most 【B19】______ things you can do for friends is to help them develop their self-concept as they help you develop 【B20】______ .

A．Because

B．Which

C．That

D．Whether

点击查看答案

第8题

A father's relationship to his child's current and future academic success and the level o

f his or her development in academic potential and scholastic achievement are both factors with some rather interesting implications that educators are beginning to study and appraise. As a matter of fact, "life with father", has been discovered to be a very important factor in determining a child's progress or lack of progress in school.

A recent survey of over 16,000 children made by the National Child Development Study in London, England, revealed that children whose fathers came to school conferences and accompanied their children on outings did measurably better in school than did those children x, hose fathers were not involved in these activities. The study, which monitored children born during a week in March, 1958, from the time of their birth through the years of their early schooling, further revealed that the children of actively involved fathers scored as much as seven months higher in reading and maths than did those children whose only involved parent was the mother. The purpose of the study was to evaluate the role played by fathers in the raising of a child. It indicated a much higher level of parental involvement by the father than had been anticipated. Over 66% of the fathers were said to have played a major role in parental responsibility.

The study also suggested that the greatest level of parental parenting took place in the families of only children. As the number of children and financial obligations increased, the father's apparent interest and involvement with the children decreased. However, no matter what the size of financial condition of the family, a father's active participation in the child's development made great difference in the children's progress.

The study further revealed that while the frequency of overnight absences reflected a corresponding deficiency of the child's level in maths and reading, a father's employment on late shifts appeared to have little effect on the child's academic progress. The data from the study was obtained primarily through interviews with parents, teachers and physicians. The information evaluating the level of the father's parenting performance was elicited primarily from the admittedly subjective observations of their wives.

It was implied from the passage that______

A．children in large families tend to do poorly in school

B．a father's influence played a significant factor in the level of the child's academic progress

C．mothers were subjective in evaluating the roles played by fathers

D．there is a correlation between socio-economic status and scholastic achievement

点击查看答案

第9题

People with disabilities comprise a large part of the population. It is estimated that

over 35 million Americans have physical, mental, or other disabilities. About half of these disabilities are "developmental", i.e., they occur prior to the individual's twenty-second birthday, often from genetic conditions, and are severe enough to affect three or more areas of development, such as mobility, communication, employment, etc. Most other disabilities are considered "adventitious", i.e., accidental or caused by outside forces.

Prior to the 20th century, only a small percentage of people with disabilities survived for long. Medical treatment for these disabilities was unavailable. Advancements in medicine and social services have created a climate in which people with disabilities can expect to have such basic needs as food, shelter, and medical treatment. Unfortunately, these basics are often not available. Civil liberties such as the right to vote, marry, get an education, and gain employment have historically been denied on the basis of disability.

In recent decades, the disability rights movement has been organized to fight against these infringements of civil rights. Congress responded by passing major legislation recognizing people with disabilities as a protected class under civil rights statutes.

Still today, people with disabilities must fight to live their lives independently. It is estimated that more than half of qualified Americans with disabilities are unemployed, and a majority of those who do work are underemployed. About two-thirds live at or below the official poverty level.

Significant barriers, especially in transportation and public awareness, prevent disabled people from taking part in society. For example, while no longer prohibited by law from marrying, a person with no access to transportation is effectively excluded from community and social activities which might lead to the development of long-term relationships.

It will only be when public attitudes advance as far as laws have that disabled people will be fully able to take their rightful place in society.

46.A "developmental" disability ____.

A.develops very slowly over time

B.is caused forces

C.occurs in youth and affects development

D.is getting more and more severe

47.Most disabled people used to die early because ____.

A.disabilities destroyed major bodily functions

B.they were not very well looked after

C.medical techniques were not available

D.they were too poor to get proper treatment

48.In the author's opinion, to enable the disabled people to take their rightful place in society ____.

A.more laws should be passed

B.public attitudes should be changed

C.government should provide more aids

D.more public facilities should be set up

49.Which of the following cannot be inferred from the passage____.

A.Many disabled people may remain single for their whole life.

B.The public tends to look down upon the disabled people.

C.The disabled people feel inferior to those surrounding them.

D.Discriminatory laws prevent the disabled from mixing with others.

50.The best title for this passage might be ____.

A.Handicaps of People with Disabilities

B.The difficulties of the Disabled

C.The Causes for Disabilities

D.Medical Treatments for Disabilities

点击查看答案

第10题

Among the most popular books being written today are those which are usually classified as

science fiction (科幻小说). Hundreds of titles are published every year and are read by all kinds of people. Furthermore, some of the most successful films of recent years have been based on science fiction stories.

It is often thought that science fiction is a fairly new development in literature, but its ancestors (原型) can be found in books written hundreds of years ago. These books are often concerned with the presentation of some forms of ideal society, a theme which is still often found in modern stories.

Most of classics of science fiction, however, have been written within the last one hundred years. Books by writers such as Jules Verne and H. G. Wells, to mention just two well-known authors, have been translated into many languages.

Modern science fiction writers don't write about men from Mars or space adventure stories. They are more interested in predicting the results of technical developments on society and the human mind; or in imagining future worlds which are a reflection (反映) of the world which we live in now. Because of this their writing has obvious political undertones (含意) .

In an age where science fact frequently overtakes(超越) science fiction, the writers may find it difficult to keep ahead of scientific advances. Those who are sufficiently clear-sighted to see the way we are going, however, may provide a valuable lesson on how to deal with the problems which society will inevitably face as it tries to come to terms with a continually changing view of the world.

Which of the following statements is NOT true？

A．Science fiction is fairly new in literature.

B．Science fiction is rather popular with people today.

C．Science fiction often deals with some forms of ideal society.

D．Hundreds of books classified as science fiction are printed every year.

点击查看答案

长沙壹依黑科技有限公司版权所有 ©2024

湘ICP备2024047451号营业执照

违法和不良信息举报电话：400-118-7898

举报/反馈/投诉邮箱：deng＃ujigu.com（请将＃替换成@）