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In the event that two devices need access to a common server， but they cannot communicate witheach other， which security feature should be configured to mitigate attacks between thesedevices？（）
A . private VLANs
B . port security
C . BPDU guard
D . dynamic ARP inspection
E . DHCP snooping
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How can permissions be set up on /tmp so that one user in a group cannot delete another user’s files in that same group（）
A . chmod +s /tmp
B . chmod 755 /tmp
C . chmod 1777 /tmp
D . chmod 4755 /tm
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How can permissions be set up on /tmp so that a user cannot delete another user’s files？（）
A . chmod +s /tmp
B . chmod 775 /tmp
C . chmod 1777 /tmp
D . chmod 4755 /tm
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A user reports that they cannot cd to /tmp/application. A system administrator entered the following command： （1）ls -ld /tmp/application （2）drw-r--r-- 4 root system 512 Jan 15 14：09 application What is the most likely cause of the problem？（）
A . The /tmp/application should be globally writable.
B . The /tmp/application directory should be executable.
C . The /tmp/application directory should be owned by the user.
D . The /tmp/application directory should have the sticky bit set.
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Which command will configure a directory /commonfiles so that a user cannot delete files owned by other users in the same group（）？
A . chmod +S /commonfiles
B . chmod 4775 /commonfiles
C . chmod 1777 /commonfiles
D . chmod -orgx /commonfile
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Users complain they cannot communicate with a server. The system administrator suspects there may be a problem with the Ethernet adapter or with the way it is configured. Which command can be run to verify the adapter is configured correctly？（）
A . netstat -in
B . ifconfig -a
C . arp -a
D . cfgmgr
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Which command will configure a directory /commonfiles so that a user cannot delete files owned by other users in the same group?（）
A . chmod +S /commonfiles
B . chmod 4775 /commonfiles
C . chmod 1777 /commonfiles
D . chmod -orgx /commonfile
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The（）IRA believed that they had made enough progress so that they could concentrate on a political process,and run candidates for（）
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The exporters were willing to grant 3 months’ credit so they draw a draft at 90 days after ______.
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They ______ his hands and legs with a rope so he couldn’t escape.
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根据回答，请选择问句。A. They are building a greenhouse.B. They are building a green house.--- Why are they so keen on green?
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听力原文：M: It's so cold today. I cannot work any longer. I really hope there's a heater in this room.
W: So do I. I think I will freeze if I stay longer.
What are they talking about？
A．The heater of this room.
B．The cold weather.
C．Long working hours.
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Marginal cost equals marginal utility in a well－running society, so they are essentially the same thing.（)
是
否
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The young couple were so angry that they suddenly______a quarrel.
A．broke in
B．broke out
C．broke into
D．broke up
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A:The students work hard.B:So they do.So do they.以上两种回应表达的意义相同。（)
是
否
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--- Will you please fly a kite with me in the park this afternoon?
---_____. I will look after my sister. A．I think so . B．I’d like to. C．I’m afraid so. D．I’m afraid not .
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中英互译：Those urban planners who are blind to this point will pay a heavy price, which they cannot afford it.
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Most people have experienced the feeling, after a taxing mental work-out, that they cannot be bothered to make any more decisions. If they are forced to, they may do so intuitively, rather than by reasoning. Such apathy is of ten put down to tiredness; but a study published recently in Psychological Science suggests there may be more to it than that. Whether reason or intuition is used may depend simply on the decision-maker's blood-sugar level—which is, itself, affected by the process of reasoning.
E.J. Masicampo and Roy Baumeister of Florida State University discovered this by doing some experiments on that most popular of laboratory animals, the impoverished undergraduate. They asked 121 psychology students who had volunteered for the experiment to watch a silent video of a woman being interviewed that had random words appearing in bold black letters every ten seconds along the perimeter of the video. This was the part of the experiment intended to be mentally taxing. Half of the students were told to focus on the woman, to try to understand what she was saying, and to ignore the words along the perimeter. The other half were given no instructions. Those that had to focus were exerting considerable serf-control not to look at the random words.
When the video was over, haft of each group was given a glass of lemonade with sugar in it and half was given a glass of lemonade with sugar substitute. Twelve minutes later, when the glucose from the lemonade with sugar in it had had time to enter the students' blood, the researchers administered a decision-making task that was designed to determine if the participant was using intuition or reason to make up his mind.
The students were asked to think about where they wanted to live in the coming year and given three accommodation options that varied both in size and distance from the university campus. Two of the options were good, but in different ways: one was far from the campus, but very large; the other was close to campus, but smaller. The third option was a decoy, similar to ope of the good options, but obviously not quite as good. ff it was close to campus and small, it was not quite as close as the good close option and slightly smaller, if it was far from campus and large, it was slightly smaller than the good large option and slightly farther away.
Psychologists have known for a long time that having a decoy option in a decision-making task draws people to choose a reasonable option that is similar to the decoy. Dr. Masicampo and Dr. Baumeister suspected that students who had been asked to work hard during the video and then been given a drink without any sugar in it would be more likely to rely on intuition when making this decision than those from the other three groups. And that is what happened; 64% of them were swayed by the decoy. Those who had either not had to exert mental energy during the showing of the video or had been given glucose in their lemonade, used mason in their decision-making task and were less likely to be swayed by the decoy.
It is not clear why intuition is independent of glucose. It could be that humans inherited a default nervous system from other mammals that was similar to intuition, and that could make snap decisions about whether to fight or flee regardless of how much glucose was in the body.
Whatever the reason, the upshot seems to be that thinking is, indeed, hard work. And important decisions should not be made on an empty stomach.
The word "taxing" in the fast paragraph means
A．tiring.
B．imposing taxation.
C．paying taxation.
D．relaxing.
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Mobile Phones:Are They about to Transform. Our Lives？ We love them so much that some of us sleep with them under the pillow,yet we are increasingly concerned that we cannot escape their electronic reach.We use them to convey our most intimate secrets,yet we worry that they are a threat to our privacy.We rely on them more than the lnternet to cope with modern life,yet many of us don’t believe advertisements saying we need more advanced services.
Sweeping aside the doubts that many people feel about the benefits of new third generation phones and fears over the health effects of phone masts(天线竿),a recent report clains that the long-term effects of new mobile technologies will be entirely positive so long as the public can be convinced to make use of them.Research about users of mobile phones reveals that the mobile has already moved beyond being a mere practical communications tool to become the backbone (支柱)of modern social life,from love affairs to friendship to work.One female teacher,32,told the researchers:“I love my phone.It’s my friend.”
The close relationship between user and phone is most pronounced among teenagers,the report says,who regard their mobiles as an expression of their identity.This is partly because mobiles are seen as being beyond the control of parents.But the researchers suggest that another reason may be that mobiles,especially taxt messaging,are seen as a way of overcoming shyness.“Texting is often used for apologies,to excuse lateness or to communicate other things that make us uncomfortable,”the report says,The impact of phones,however,has been local rather than global,supporting existing friendships and networks,rather than opening users to a new broader community.Even the language of texting in one area can be incomprehensible to anybody from another area.
Among the most important benefits of using mobile phones,the report claims,will be a vastly improved mobile infrastructure(基础设施),providing gains throughout the economy,and the provision of a more sophisticated location-based services for users.The report calls on govemment to put more effort into the delivery of services by bobile phone,with suggestions including public transport and traffic information and doctors’ text messages to remind patients of appointments.“I love that idea,”one user said in an interview.“It would mean I wouldn’t have to write a hundred messages to myself.”
There are many other possibilities.At a recent trade fair in Sweden,a mobile navigation product was launched.When the user enters a destination,a route is automatically downloaded to their mobile and presented by voice,pictures and maps as they drive.In future,these devices will also be able to plan around congestion(交通堵塞)and road works in real time.Third generation phones will also allow for remote monitoring of patients by doctors.In Britain scientists are developing a asthma(哮喘)management solution,using mobiles to detect early signs of an attack.
第11题：What does the writer suggest in the first paragraph about our attitudes to mobile phones？
A．We can’t live without them.
B．We are worried about using them so much.
C．We have contradictory feelings about them.
D．We need them more than anything else to deal with modem life.
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People travel a lot with Heaven Air because they know they well get what they want. They want to go quickly and safely across the land, across the sea or right across the world, and they know Heaven Air will take them where they want to go whenever they want to go. Heaven. Air flies all the newest and fastest planes to more towns and cities of the world than any other airlines.
Do you want to go to Paris, Washington, Tokyo？ Heaven Air will take you there, at all times of the day or night, right through the week. But Heaven Air flies not only to the biggest cities, we also fly two or three times a week to towns and cities in the very center of Asia, Africa and South America.
People fly with Heaven Air because they know they will leave on time and arrive on time, They know that they will receive the best food and watch the best films.
Heaven Air is second to none.
Heaven Air is the name of______ .
A．a plane
B．an airline
C．a travel service
D．an advertising program
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The damage ___________by theflood was so large that the buildings cannot be rebuilt in a short time． [A]to becaused [B]causing [C]caused [D]wascaused
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"Delegate" means to “ Give a job to sb so that they do it for you”,In other words, means"They get other people to do some part of their work."（）
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There were a few so-called rooms but they were ________large enough to qualify as such.
A．appropriately
B．scarcely
C．generally
D．presumably
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Man has always wanted to fly.Some of the greatest men in history have thought about the problem.One of these，for example，was the great Italian artist, Leonardo da Vinci(达·芬奇).In the sixteenth century he made designs for machines that would fly.But they were never built.Throughout history, other less famous men have wanted to fly.An example was a man in England 800 years ago.He made a pair of wings from chicken feathers.Then he fixed them to his body and jumped into the air from a tall building.He did not fly very far.Instead，he fell to the ground and broke every bone in his body.
The first real steps took place in France, in 1783.Two brothers, the Montgolfiers, made a very large “hot air balloon”.They knew that hot air rises.Why not fill a balloon with it？The balloon was made of cloth and paper.In September of that year，the King and Queen of France came to see the balloon.They watched it carry the very first air passengers into the sky.The passengers were a sheep and a chicken.We do not know how they felt about the trip.But we do know that the trip lasted eight minutes and that the animals landed safely.Two months later，two men did the same thing.They rose above Paris in a balloon of the same kind.Their trip lasted twenty-five minutes and they travelled about eight kilometers.
26.Leonardo da Vinci ______ .
A.said that man would fly in the sky one day
B.built a kind of machine which never flew
C.drew many beautiful pictures of birds
D.made designs for flying machine
27.Eight hundred years ago an Englishman ______ .
A.made a kind of flying machine
B.tried to fly with wings made of chicken feather
C.wanted to build a kind of balloon
D.tried to fly on a large bird
28.In fact，the Englishman who tried to fly ______ .
A.lost his life
B.flew only 8minutes
C.got badly wounded
D.succeeded in flying
29.The very first air passengers in the balloon were ______.
A.two animals
B.two Frenchmen
C.the King and the Queen
D.the Montgolfiers
30.When did two Frenchmen rise above Paris？______
A.In December 1783.
B.In September 1783.
C.In November 1783.
D.In the seventeenth century.
