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In which way does a Secure Socket Layer (SSL) server prevent a “man-in-the-middle” att

A.It uses signed certificates to authenticate the server’s public key.

B.A 128 bit value is used during the handshake protocol that is unique to the connection.

C.It uses only 40 bits of secret key within a 128 bit key lengt

D.Every message sent by the SSL includes a sequence number within the message contents.

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更多“In which way does a Secure Soc…”相关的问题
第1题
What do we mean by a perfect English pronunciation? In one【56】there are as many different
kinds of English as there are speakers of it.【57】two speakers speak in exactly the same【58】.We can always hear differences【59】them, and the pronunciation of English【60】a great deal in different geographical【61】How do we decide what sort of English to use as a【62】? This is not a question that can be【63】in the same way for all foreign learners of English.【64】you live in a part of the world【65】India, where there is a long【66】of speaking English for general communication purpose, you should select to【67】a good variety of the pronunciation of this area. It would be mistake in these【68】to use as a model BBC English or【69】of the sort. On the other hand, if you live in a country【70】there is no traditional【71】of English, you must take as your model some forms of【72】English pronunciation. It does not【73】very much which form. you choose. The most【74】way is to take as your model the sort of English you can【75】most often.

(56)

A.meaning

B.case

C.sense

D.situation

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第2题
Have you 【B1】______ asked yourself why children go to school? You will probably say that t
hey go 【B2】______ their own language and other languages, arithmetic, history, science and 【B3】______ subjects. That is quite true, but why do they learn these things? And are these things 【B4】______ that they learn at school?

We 【B5】______ our children to 【B6】______ them for the time 【B7】______ they will be big and will have work 【B8】______ themselves. Nearly all they study at school has some 【B9】______ use in their life. But is that the only reason 【B10】______ they do to school?

There is 【B11】______ in education then we have just learning facts. We go to school 【B12】______ all to lean how to learn 【B13】______ when we have 【B14】______ school we can continue to learn. A man who really knows 【B15】______ will always be successful. Because 【B16】______ he has to do something new which he has never had to do 【B17】______ , he does it in the best 【B18】______ . The uneducated person 【B19】______ , is probably unable to do something new, or does it badly. The purpose of schools, therefore, is not just to teach languages 【B20】______ to teach pupils the way to learn.

A.either

B.whether

C.ever

D.as well

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第3题
短文理解听力原文:Hyperinflation is defined as an economic condition during which there is

短文理解

听力原文: Hyperinflation is defined as an economic condition during which there is a steep increase in prices. In accordance with the laws of economics, three factors combine to create this condition. First, demand must be much greater than the supply of available goods. Second, the country must continuously create and thereby build up an ever-increasing supply of money. Third, the governmental processes that are used to collect taxes must be crippled. Let's imagine a country where production is barely accomplishing its goal: to keep up with demand. When this happens, the government should decrease the salaries of the workers by raising taxes. But the government is powerless to collect the taxes, so it prints more money to compensate for the goods it must purchase. This new money goes to the workers who produced the goods; as a result, the people are not forced to give up certain things for a while—they actually become richer. While this might appear to be a positive step, it is actually regressive. Every month the government is forced to print more and more money, thereby increasing its liabilities until, it is destroyed. The only way to prevent total economic collapse in such a situation is for the government to increase taxes in a manner that is characterized by impartiality to everyone involved.

21. Which of the following might occur during hyperinflation?

22.What does the passage imply?

23.What does the word "regressive" probably mean?

24.What does the author centers on in this passage?

(21)

A.A slight increase in prices.

B.Rapid growth of economy.

C.Decrease of worker's salary.

D.Soaring prices.

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第4题
. [A] Thus a joke is laughed at for its own sake, even though there is an independ

.

[A] Thus a joke is laughed at for its own sake, even though there is an independent value in laughter, which lightens our lives by taking us momentarily outside ourselves. Why should not something similar be said of works of art, many of which aspire to be amusing in just the way that good jokes are?

[B] All discussion of the value of art tends, therefore, to turn from the outset in the direction of criticism: Can there be genuine critical evaluation of art, a genuine distinction between that which deserves our attention and that which does not? (And, once again, the question may be extended to objects of natural beauty.)

[C] Art is held to be a form. of education, perhaps an education of the emotions. In this case, it becomes an open question whether there might not be some more effective means to the same result. Alternatively, one may attribute a negative value to art, as Plato did in his Republic, arguing that art has a corrupting or diseducative effect on those exposed to it.

[D] Artistic appreciation, a purely personal matter, calls for appropriate means of expression. Yet, it is before anything a process of “cultivation”, during which a certain part of one’s “inner self” is “dug out” and some knowledeg of the outside world becomes its match.

[E] If I am amused it is for a reason, and this reason lies in the object of my amusement. We thus begin to think in terms of a distinction between good and bad reasons for laughter. Amusement at the wrong things may seem to us to show corruption of mind, cruelty, or bad taste; and when it does so, we speak of the object as not truly amusing, and feel that we have reason on our side.

[F] Such thinkers and writers believe that art is not only an end in itself but also a sufficient justification of itself. They also hold that in order to understand art as it should be understood, it is necessary to put aside all interests other than an interest in the work itself.

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第5题

When a consumer finds that an item she or he bought is faulty or in some way does not live up to the manufacturer's claim for it, the first step is to present the warranty, or any other records which might help at the store of purchase. In most cases, this action will produce results. However, if it does not there are various means the consumer may use to gain satisfaction.

A simple and common method used by many consumers is to complain directly to the store manager. In general, the "higher up" the consumer takes his or her complaint, the faster he or she can expect it to be settled in such a case, it is usually settled in the consumer's favor, assuming, he or she has a just claim.

Consumers should complain in person whenever possible, but if they cannot get to the place of purchase, it is acceptable to phone or write the complaint in a letter.

Complaining is usually most effective when it is done politely but firmly and especially when the consumer can show what is wrong with the item he has bought. If this cannot be done, the consumer will succeed best by presenting specific information as to what is wrong, rather than by making general statements. For example "The left speaker does not work at all and the sound coming out of the right one is unclear" is better than "This stereo does not work".

The store manager may advise the consumer to write to the manufacturer if so, the consumer should do this, stating the complaint as politely and as firmly as possible. But if a polite complaint does not achieve the desired result, the consumer can go a step further. She or he can threaten to take the seller to court or report the seller to a private or pubic organization responsible for protecting consumers' rights.

When a consumer finds that his purchase has a fault in it, the first thing he should do is to ().

A.complain personally to the manager

B.threaten to take the matter to court

C.write a firm letter of complaint to the store of purchase

D.show their written proof of the purchase to the store

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第6题
It seems that beauty and women are twins. Observe for yourself. Ads on fashion flood TV sc
reen, radio programs, magazines and the streets. Whether they have realized or not, women are besieged (包围) by a sea of fashion. They are taught to think that without beautiful clothes they will grow old and lose their charm. So who dares to neglect dressing up at the cost of their appearance and youth?

But I do not agree with the opinion that women have to show their beauty through their looks. The richness of their mind proves to be more beautiful and attractive than their looks. A woman who has experienced many troubles and may be called "aunt" or "granny" can still maintain her beauty if she has such excellent qualities as knowledge, ability, a kind heart and concern for others.

In addition, old and young, beautiful and ugly are relative concepts. People who keep a young mind will never feel old. Curious about new things and eager to learn more, they keep up with the tide. Plainly dressed women may have a type of beauty, which is pure and real.

Reading and learning is the best way to keep one youthful. Good books are fertile soil which can feed the flower of one's heart and looks.

Why does the author say that beauty and women are twins?

A.Women are born to be beauties.

B.Women like to show off their beauties

C.Women are proud of their beauty

D.Women try to maintain their beauty by dressing up

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第7题
On a more practical level, teachers need a wide variety of skills and abilities. Theyhave
to be. ready to spend many hours at home planning their lessons. and making homework. They have to be well organized in class, patient with the students able to appear bright and interested even if they are in fact tired or unhappy, and lively enough to controla group of young people for almost 200 days a year. Outside the classroom, they may have to prepare teaching materials,to choose text books,to help organize the work of the otherteachers, or to organize spare time activities for the students.

If you think that you have all the necessary qualities, you may feel that you would like to be a teacher One way lo decide,if you live in the United Stales,is by joining a club for future teachers, such as Student Action For Education. Clubs like this give you advice about your career and also allow you to watch teachers at work, attend meetings and experiment with teaching methods and equipment. You could also talk wiih the career advisors at your school or university. Finally you could try teaching a younger student or becoming an advisor at summer camp for children.Any activity in which you are dealing with children will help you decide whether you have a vocation for teachering.

Which sentence in Paragraph 1 is topic sentence?

A.The 1st sentence

B.The 2nd sentence

C.The last sentence

D.There is no topic sentence in the paragraph

According to tKe author/ a teacher should show a firm mindA.that suffers only from tiredness

B.that suffers only from unhappiness

C.that suffers only from unusual tiredness or unhappiness

D.that does not suffer from tiredness nor from unhappiness

The last paragraph is mainly concerned with___.A.the ways of deciding one’s career

B.the ways to decide whether teaching could be one’s career

C.joining a club for future teachers

D.talking to dn advisor when choosing a career

Which of the following does the author recommend to a person who wants to be a teacher?A.Watching teachers at work/ or organizing students/ spare time activities

B.Joining a future teacKers/ club, tdlking witK career advisors/ or working with children

C.Preparing and correcting homework/experimenting with teaching methods ditd equipment

D.Planning lessons/ or attending teachers/ meetings

请帮忙给出每个问题的正确答案和分析,谢谢!

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第8题
Robert Kohout, 39, was working outside his home last October when he heard a frightening n
oise. He turned round and saw Walter Graham’s car sinking into 8 feet of water of the swimming pool a little distance away from his yard.

Kohout immediately called to Graham’s wife, Evelyn, to telephone 911. Then he ran back to his house to get Terence Reif and Glenn Fajardo to help,who were at work inside the house. “There was no time for second thoughts,” said Reif,a farmer’ s son. “The only thing to do was to get in the pool.”

The car doors were locked. Graham,73, was unconscious (失去知觉),and his Mercury was rapidly filling with water. Reif struggled to break the driver’ s side window with a hammer but had trouble getting it done underwater.

Finally—some four minutes after the car had fallen into the pool—the glass was broken. By then,Graham was floating at the top of the flooded passenger compartment (车厢).

The three men pulled Graham out through the broken glass. He wasn’ t breathing and his heart stopped beating,so they performed mouth-to-mouth resuscitation. The rescue(急救)team arrived in no time. Doctors supplied him with advanced life support on the way to the hospital.

“ These people were getting to Graham through the glass,’’ said Dr. Jeff Messinger. “ All three acted without regard for their own safety. ’’Added Evelyn Graham,“They were truly angels(天使)watching over us.” Immediately after Robert found the car sinking into the pool, he ____.

A.jumped into the pool

B.shouted to let Evelyn call the rescue team

C.ran to the nearest telephone

D.rushed into Graham’s house to find his wife

What does the word “resuscitation” refer to in the story?A.A way of saving people who have stopped breathing

B.A way of helping people who have heart trouble

C.A way of saving people who have got drunk

D.A way of helping people who need water

Which of the following would be the best title for this story?A.The Underwater Gar.

B.Angels around Us.

C.Rescue Team in Time

D.Safety First.

请帮忙给出每个问题的正确答案和分析,谢谢!

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第9题
When a consumer finds that an item she or he bought is faulty or in some other way does no
t live up to the manufacturer's claim for it, the first step is to present the warranty (保单), or any other records which might help, at the store of purchase. In most cases, this action will produce results. However if it does not, there are various means the consumer may use to gain satisfaction.

A simple and common method used by many consumers is to complain directly to the store manager. In general, the "higher up" the consumer takes his or her complaint, the faster he or she can expect it to be settled. In such a case, it is usually settled in the consumer's favor, assuming he or she has a just claim.

Consumers should complain in person whenever possible, but if they cannot get to the place of purchase, it is acceptable to phone or write the complaint in a letter.

Complaining is usually most effective when it is done politely but firmly, and especially when the consumer can demonstrate what is wrong with the item in question. If this cannot be done, the consumer will succeed best by presenting specific information as to what is wrong, rather than by making general statements. For example, "The left speaker does not work at all and the sound coming out of the right one is unclear" is better than "This stereo (立体声音响) does not work."

The store manager may advise the consumer to write to the manufacturer. If so, the consumer should do this, stating the complaint as politely and as firmly as possible. But if a polite complaint does not achieve the desired result, the consumer can go a step further. She or he can threaten to take the seller to court or report the seller to a private or public organization responsible for protecting consumers' rights.

When a consumer finds that his purchase has a fault in it, the first thing he should do is to ______.

A.complain personally to the manager

B.threaten to take the matter to court

C.write a firm letter of complaint to the store of purchase

D.show some written proof of the purchase to the store

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第10题
Let children learn to judge their own work.A child learning to talk does not learn by
being corrected all the time: if corrected too much, he will stop talking.He notices a thousand times a day the difference between the language he uses and the language those who are around him use.Bit by bit, he makes the necessary changes to make his language like other people's.In the same way, children learning to do all the other things without being taught-to walk, run, climb, ride a bicycle-compare their own performances with those of more skilled people, and slowly make the needed changes.But in school we never give a child a chance to find out his mistakes for himself, let alone correct them.We do it all for him.We act as if we thought that he would never notice a mistake unless it was pointed out to him, or correct it unless he was made to.Soon he becomes dependent on the teacher.Let him do it himself or with the help of other children if he wants it.

Let him correct his own papers.Why should we teachers waste time on such routine work? Our job should be to help the child when he can't find the way to right answer.Let's end all this nonsense of grades, exams, marks.Let the children learn what all educated persons must some day learn, how to measure their own understanding, how to know what they know or do not know.

Let them get on with this job in the way that seems most sensible to them.The idea that there is a body of knowledge to be learnt at school and used for the rest of one's life is nonsense in a world as complicated and rapidly changing as ours.Anxious parents and teachers say, “But suppose they fail to learn something essential, something they will need to get on in the world?” Don't worry! If it is essential, they will go out into the world and learn it.

31.What does the author think is the best way for children to learn things______?

A.By copying what other people do

B.By finding mistakes and correcting them

C.By listening to explanations from skilled people

D.By asking a great many questions

32.What does the author think teachers do which they should not do______?

A.They give children correct answers

B.They point out children's mistakes to them

C.They allow children to make their own work

D.They encourage children to copy from one another

33.The passage suggests that learning to speak and learning to ride a bicycle are______.

A.not really important skills

B.more important than other skills

C.basically different from learning adult skills

D.basically the same as learning other skills

34.Exams, grades and marks should be abolished(废除) because children's progress should only be judged by______.

A.educated persons

B.the children themselves

C.teachers

D.parents

35.the author fears that children will grow up into adults who are______.

A.too independent of others

B.too critical of themselves

C.unable to think for themselves

D.unable to use basic skills

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第11题
????Questions 11 to 15 are based on the following passage:Apopularly-held view has it that

????Questions 11 to 15 are based on the following passage:

Apopularly-held view has it that “opportunity to learn” is the key to educational success -i.e.the more time children spend on a subject, the better they do at it. According to the recent study there seems little correlation between time spent on a subject and performance of pupils in tests. Young Austrians spend exceptionally long hours on math and science lessons; for them it pays off in higher test scores. But so do New Zealand&39;s teenagers and they do not do any better than, say Norwegians, who spend an unusually short time on lessons in both subjects. Next and of particular interest to cash-strapped governments there appears to be little evidence to support the argument, often heard from teachers&39; unions, that the main cause of educational under achievement is under funding. Low-spending countries such as South Korea and the Czech Republic are at the top. High-spenders such as America and Denmark do much worse. Obviously there are dozens of reasons other than spending why one country does well, another badly, but the success of the low–spending Czechs and Koreans does show that spending more on schools is not aprerequisite(前提) for improving standards.

Another article of faith among the teaching profession that children are bound to do better in small classes is also being undermined by educational research. The study found that France, America and Britain, where children are usually taught in classes of twenty-odd, do significant1y worse than East Asian countries where almost twice as many pupils are crammed into each class. Again, there may be social reason why some countries can cope better with large classes than others. All the same, the comparis on refutes the argument that larger is necessarily worse, Further, the study even cast some doubt over the cultural explanation for the greater success o fEast Asia: that there is some hard-to-define Asian culture, connected with parental authority and a strong social value on education, which makes children more eager to learn and easier to teach. Those who make this argument say it would of course be impossible to replicate such oriental magic in the West.

Yet the results of the study suggest that this is, to put it mildly, exaggerated. If “culture” makes English children so poor at math, then why have they done so well at science (not far behind the Japanese and South Koreans)?Any why do English pupils do well at science and badly at math, while in France it is the other way around ?A less mystical, more mundane explanation suggests it self English school: teach science well and math badly; French schools teach math better than science; East Asia schools teach both subjects well.

The passage is mainly concerned with ___.??

??A.establishing a relationship between culture and education

B.exposing educational myths

C.introduction educational philosophies

D.comparing education philosophies

All of the following are common-held beliefs about education EXCEPT___.

A.time spent on a subject correlates with academic success

B.educational achievements correlate with the money spent

C.large classes contribute to poor educational achievement

D.culture is not a deciding factor in school performance

Which of the following statements is supported by the passage?

A.Austrian teenagers do better than New Zealands teenagers

B.Low-spending will lead to good school performance.

C.Students in large classes will do better than students in small class.

D.Asian culture makes students eager to learn and easy to teach.

The fact that English pupils do well at science and badly at math while in France it is the other way around is attributable to ___.A.cultural values

B.teaching methods

C.class size

D.money spent

Which of the following countries does worse in science?A.Japan.

B.South Korea

C.Britain.

D.France

请帮忙给出每个问题的正确答案和分析,谢谢!

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