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--I would why he ____so strangely these days.
--Recent pressure at study may account for his behavior.
A. was acting B.is acting C. acted D. acts
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I travel to the Binhai New Area by light railway every day, ________do many businessmen who live in downtown Tianjin.
A. as B. which C. when D. though
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As a new diplomat, be often thinks of _________he can react more appropriately on such occasions.
A. what B. which C. that D. how
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He was unable to make much progress,_________.
A hard as he tried B as hard he tried C hard he was tried D tried hard as he
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Quickly ______himself, he ran out to the street.
A.dressing B.dressed C.having dressed D.having been dressed
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The European market has long been favoring a number of African and Caribbean countries,___former colonies of Britain or France.
A.many of whom B.many of them C.many of which D.and many of them
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Computerised trading agents may help humans build better markets
THANKS to declining markets, investment banks are getting rid of many of their highly-paid traders. When markets recover, the banks might be tempted to replace them with rather cheaper talent. One alternative has been around for a while but has yet to catch on: autonomous trading agents-computers programmed to act like the human version without such annoying costs as holidays, lunch breaks or bonuses. Program trading has, of course, been done before; some blamed the 1987 stock market crash on computers instructed with simple decision-making rules. But robots can be smarter than that.
Dave Cliff, a researcher at Hewlett-Packard Laboratories in Bristol, England, has been creating trading robots for seven years. In computer simulations he lets them evolve "genetically", and so allows them to adapt and fit models of real-world financial markets. His experiments have suggested that a redesign of some markets could lead to greater efficiency. Last year, a research group at IBM showed that Mr Cliff's artificial traders could consistently beat the human variety, in various kinds of market. Nearly all take the shape of an auction(拍賣). One well-known type is the English auction, familiar to customers of the salesrooms(拍賣場(chǎng))of Christie's and Sotheby's, where sellers keep mum on their offer price, and buyers increase their bids by stages until only one remains.
At the other extreme is the Dutch auction, familiar to 17th-century tulip-traders in the Netherlands as well as to bidders for American Treasury bonds. Here, buyers remain silent, and a seller reduces his price until it is accepted. Most markets for shares, commodities, foreign exchange and derivatives are a mixture of these two types: buyers and sellers can announce their bid or offer prices at any time, and deals are constantly being closed, a so-called "continuous double auction".
Mr Cliff's novel idea was to apply his evolutionary computer programs to marketplaces themselves. Why not, he thought, try and see what types of auction would let traders converge(趨同) most quickly towards a balance price? The results were surprising. In his models, auctions that let buyers and sellers bid at any time like most of today's financial exchanges were less efficient than ones that required relatively more bids from either buyers or sellers. These "evolved auctions" also withstood big market shocks, such as crashes and panics, better than today's real-world versions. Mr Cliff's most recent results, which will be presented in Sydney, Australia, on December 10th, show that the best type of auction for any market depends crucially on even slight differences in the number of buyers and sellers.
Bank of America has been investigating these new auctions, along with robotic traders, for possible use in electronic exchanges. The hope is that today's financial auctions and online marketplaces might work better by becoming more like their English and Dutch ancestors.
1.What is the passage mainly about?
A. A review of two kinds of auctions. B. An introduction of trading robots.
C. A survey of the trading market. D. About trading alternatives.
2.Which of the following is true according to the text?
A. Mr Cliff’s robot traders have now been used in real-world markets.
B. Robot traders can evolve like creatures.
C. There is room for improvement in efficiency in trading markets.
D. The English auction is the most popular trading form.
3.What can we infer from the text?
A. Existing auctions cannot withstand market shocks
B. The Dutch auction is better than the continuous double auction
C. It’s hard for traders to reach a balanced price
D. The best type of auction takes place when the number of the buyers is equal to that of sellers
4.What’s the author’s attitude toward robot traders?
A. Prejudiced B. Objective C. Critical D. Optimistic
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第五部分 書(shū)面表達(dá) (滿分25分)
高考文理分科與否在不同人群中反響各一,請(qǐng)根據(jù)圖畫(huà)所給提示,用英語(yǔ)寫(xiě)一篇短文,發(fā)表自己的感想。
注意:
1. 仔細(xì)品讀圖畫(huà)中的文字,要突出自己的感想,不要作簡(jiǎn)單描述;
2. 詞數(shù)150左右,開(kāi)頭已經(jīng)寫(xiě)好,不計(jì)入總詞數(shù)。
3. 參考詞匯:全能的 overall 高考 CET
Whether to cancel the division of science and art in senior middle school is an issue of controversy nowadays.
_____________________________________________________________________________
_____________________________________________________________________________
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—It’s a pity that Wang Qiang failed in the driving test again.
—How can you expect him to pass _______ he hasn’t been practicing enough?
A. when B. once C. unless D. though
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Stanford opened its doors in 1891 and more than a century later, it remains _____finding solutions to the great challenges of the day and to _______ its students for leadership in today’s complex world.
A. devoted, prepare B. dedicated to, preparing
C. dedicating, prepare D. devoting to, preparing
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