对2002年以后提前兑付的国债，必须全额兑付，按兑付本金的（）收取手续费。A、1‰

磷酸核糖的活性供体（）

A.PRPP

B.PAPS

C.FH4

D.NAD⁺

E.SAM

男，34岁，汽油火焰烧伤头面部，声音嘶哑，听诊可闻及喘鸣及干啰音，X线示：气管狭窄影，血气分析正常，诊断为（）。

A.轻度吸入性损伤

B.中度吸入性损伤

C.重度吸入性损伤

D.特重度吸收性损伤

E.肺水肿

材料一

14世纪前后欧亚商路示意图

材料二

新航路的开辟示意图

材料三

19世纪纪后期英国海外贸易示意图

请回答：

（1）依据材料一、二，指出世界贸易中心发生了怎样的变化，请简要分析其变化的历史原因。

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（2）新航路开辟后西班牙有人说：“以前我们在世界的边缘，现在在它的中央了，这给我们的命运带来了前所未有的改变。”这种改变最主要的是指什么？

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（3）结合材料三，分析19世纪晚期英国海外贸易的特点以及促进英国形成当时这一对外贸易情形的主要原因。

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（4）人类曾生活在彼此隔绝的地区，后来世界逐步连成一体，在此过程中起决定性作用的因素是什么？

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李贽

If you are a tourist interested in seeing a baseball game while in New York, you can Find out which of its teams are in town simply by sending a message to AskForCents. com. In a few minutes, the answer comes back, apparently supplied by a machine, but actually composed by a human. Using humans to process information in a machine-like way is not new- it was pioneered by the Mechanical Turk, a famed 18th-century chess-playing machine that was operated by a hidden chessmaster. But while computers have since surpassed the human brain at chess, many tasks still baffle even the most powerful electronic brain.

For instance, computers can find you a baseball schedule, but they cannot tell you directly if the Yankees are in town. Nor can they tell you whether sitting in the bleachers is a good idea on a first date. AskForCents can, because its answers come from people. "Whatever question you can come up with, there’s a person that can provide the answer-- you don’t have the inflexibility of an algorithm-driven system," says Jesse Heitler, who developed AskForCents. Mr. Heitler was able to do this thanks to a new software tool developed by Amazon, the online retailer, that allows computing tasks to be farmed out to people over the internet. Aptly enough, Amazon’s system is called Mechanical Turk.

Amazon’s Turk is part toolkit for software developers, and part online bazaar: anyone with internet access can register as a Turk user and start performing the Human Intelligence Tasks (HITs) listed on the Turk website (mturk.com ). Companies can become "requesters" by setting up a separate account, tied to a bank account that will pay out fees, and then posting their HITs. Most HITs pay between one cent and $ 5. So far, people from more than 100 countries have performed HITs, though only those with American bank accounts can receive money for their work; others are paid in Amazon gift certificates.

Mr. Heitler says he had previously tried to build a similar tool, but concluded that the infrastructure would be difficult to operate profitably. Amazon already has an extensive software infrastructure designed for linking buyers with sellers, however, and the Turk simply extends that existing model. Last November Amazon unveiled a prototype of the system, which it calls "artificial artificial intelligence". The premise is that humans are vastly superior to computers at tasks such as pattern recognition, says Peter Cohen, director of the project at Amazon, so why not let software take advantage of human strengths

Mr. Cohen credits Amazon’s boss, Jeff Bezos, with the concept for the Turk. Other people have had similar ideas. Eric Bonabeau of Icosystem, an American firm that builds software tools modeled on natural systems, has built what he calls the "Hunch Engine" to combine human intelligence with computer analysis. The French postal service, for example, has used it to help its workers choose the best delivery routes, and pharmaceutical researchers are using it to determine molecular structures by combining their gut instincts with known results stored in a database. And a firm called Seriosity hopes to tap the collective brainpower of the legions of obsessive players of multiplayer online games such as "World of Warcraft", by getting them to perform small real-world tasks (such as sorting photographs) while playing, and paying them in the game’s own currency.

Amazon is successful with Turk is probably because（）

A. Turk has very p software infrastructure developing potentials

B. its previous model has laid a solid foundation for an extension

C. its system is based on artificial artificial intelligentce

D. Turk is profitably adaptive to almost any software infrastructure