题目内容
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What is Mr. Mitchell particularly interested in？
A．Oil products.
B．Dyestuffs and pigments.
C．Cotton and linen materials.
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更多“What is Mr. Mitchell particularly interested in？A．Oil products.B．Dyestuffs and pigments.C．”相关的问题
What does Mr. Mitchell concentrate on this visit？
A．Dyestuffs.
B．Insecticides.
C．Agrochemicals.
What would be Mr. Mitchell’s main concern among the products in the catalogue？
A．Dyestuffs.
B．Insecticides.
C．Agrochemicals.
A．Developing more end users.
B．Setting appropriate prices of dyes.
C．Launching a promotional program.
What does Mr. Mitchell ask for towards the end of the negotiation？
A．He asks if Madam Li’s company would offer some promotional allowances.
B．He requires Madam Li’s company to pay for the advertising campaign.
C．He asks Madam Li's company to take the financial responsibility of selling products.
A．Israelis and Palestinians will carry out the Mitchell Plan.
B．Israelis and Palestinians will cease-fire soon.
C．Israelis and Palestinians agree to a seven-day test period for the current cease-fire, before any further steps are taken.
D．Nothing.
Mr. Powell is pushing a blueprint to end the violence, as outlined by former US Senator George Mitchell and his fact-finding team, and he told both sides there is no other option. Israelis and Palestinians have officially accepted the Mitchell Plan, but continue to argue over its implementation.
Mr. Powell met with Israeli Prime Minister Ariel Sharon and with Palestinian leader Yasser Ararat on Thursday. There were no breakthroughs, but he did get the two men to agree to a seven-day test period for the current cease-fire, before any further steps are taken.
Who outlined the blueprint to end the violence in Mid-east？
A．Mr. Powell.
B．Yasser Ararat.
C．Ariel Sharon.
D．Former US Senator George Mitchell and his fact-finding team
25 How many catalogues would Mr. Mitchell take home？
A．Five.
B．Six.
C．Seven.
How, what and why, indeed. Yet, in all these situations, most people feel a sense of unease. The technology for gathering, storing, manipulating and sharing information has become part of the scenery, but there is little guidance on how to resolve the conflicts created by all the personal data now washing around.
A group of computer scientists at Stanford University, led by John. Mitchell, has started to address the problem in a novel way. Instead of relying on rigid (and easily programmable) codes of what is and is not acceptable, Dr. Mitchell and his colleagues Adam Barth and Anupam Datta have turned to a philosophical theory called contextual integrity. This theory acknowledges that people do not require complete privacy. They will happily share information with others as long as certain social norms are met. Only when these norms are contravened--for example, when your psychiatrist tells the personnel department all about your consultation--has your privacy been invaded. The team think contextual integrity can be used to express the conventions and laws surrounding privacy in the formal vernacular of a computer language.
Contextual integrity, which was developed by Helen Nissenbaum of New York University, relies on four classes of variable. These are the context of a flow of information, the capacities in which the individuals sending and receiving the information are acting, the types of information involved, and what she calls the "principle of transmission".
It is the fourth of these variables that describes the basis on which information flows. Someone might, for example, receive information under the terms of a commercial exchange, or because he deserves it, or because someone chose to share it with him, or because it came to him as a legal right, or because he promised to keep it secret. These are all examples of transmission principles.
Dr. Nissenbaum has been working with Mr. Barth to turn these wordy descriptions of the variables of contextual integrity into formal expressions that can be incorporated into computer programs. The tool Mr. Barth is employing to effect this transition is linear temporal logic, a system of mathematical logic that can express detailed constraints on the past and the future.
Linear temporal logic is an established discipline. It is, for example, used to test safety critical systems, such as aeroplane flight controls. The main difference between computer programs based on linear temporal logic and those using other sorts of programming language is that the former describe how the world ought to be, whereas the latter list specific instructions for the computer to carry out in order to achieve a particular end. The former say something like: "If you need milk, you ought eventually to arrive at the shop. "The latter might say: "Check the refrigerator. If there is no milk, get in your car. Start driving. Turn left at the corner. Park. Walk into the shop."
Dr. Mitchell and his team have already written logical formulae that they believe express a number of American privacy laws, including those covering health care, financial institutions and children's activities online. The principles of transmission can be expressed in logical terms by using concepts such as "previously" and "eventually" as a type of mathematical operator. (They are thus acting as the equivalents of the "plus", "minus", " multiply" and "divide" signs in that more familiar system of logic known as arithmetic.) For example, the Gramm-Leaeh-Bliley act states that "a financial institution may not disclose personal
A．the computer technology can be used to protect people's privacy in public.
B．the technology of computing information may interfere with people's privacy.
C．personal data should not be released to the public for commercial use.
D．the computer technology is to blame for intruding upon people's privacy.
听力原文：F: We are honoured that you have come to see us, Mr. Mitchell.
M: Thank you, Madam Ii. We're pleased to be here and appreciate your willingness to arrange this meeting on such a short notice.
F: You have indicated that you would like to explore the possibility of an agency relationship with Sinochem with the intent of developing a market for some of our products in your country and perhaps in Canada as well.
M: Yea, that is certainly our current thinking.
F: Perhaps before we begin any detailed discussions, I should give you some idea of the scope of activities of Sinochem.
M: The name "Sinochem' is well known to us, but we would like a little more information about your company. I should tell you that your branch in the U. S. has already informed us that Expert Division No. 4 is responsible for dyestuffs and pigments.
F: Sinochem was established in 1950 and since that time has grown to become one of the largest companies in China, specializing in imports and exports of chemical products. As a result, it has gained a great deal of experience (in foreign trade) and has many foreign clients. The primary products we handle are crude oil and oil products, plastic, rubber, fertilizer and pesticides, ss well as dyestuffs and pigments. You expressed a particular interest in our various dyestuffs as well as our pigments.
M: I glanced through these catalogues and noted the wide variety of products Sinochem offers.
F: You mentioned earlier that you would like to concentrate on dyes for cotton, silk, and linen materials.
M: Yes, that is what we intend to do.
F: In that case, you may wish to take a look at our sulfur and reactive dyes. Sulfur dyes have been around for a very long time and have been used for dying sturdy work clothing from early history. You will note that the variety of eolours in which this sulfur dye is available is somewhat limited, particularly in the bright hues. They are also cheaper than the reactive dyes.
M: I gather then that the reactive dyes are used primarily for fine cottons, silk, and linen.
F: That is correct.
M: I particularly lire the wide variety of bright eolours available in reactive dyes. Is there any difference in price from one colour to another？
F: Yes, there certainly is. The most expensive is the colour, identified as Brilliant Blue KNR, under Sinochem Code No.9607. A cheaper colour dye would ha, for example, Brilliant Red K-JBP; the most economical of course is Black.
M: I assume of course that not much expertise is needed in producing black.
？You will hear part of a business negotiation between Mr. Mitchell and Madam Li.
？For each question 23—30, mark one letter A, B or C for the correct answer.
？You will hear the recording twice.
21. What is the purpose of Mr. Mitchell's visit？
A．To explore the feasibility of setting up agency relationship.
B．To open an agency.
C．To develop his products.
At the end of the passage, Kevin Mitchell implies that______.
A．the biological system is very delicate and its balance is easily broken
B．after a long and hard process, human genes come to what they are today
C．genetic mutations in the human body are developed in a casual manner
D．some people may have a higher risk of brain cancer than others
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