[填空题]Instead of passive audiences, they have become (act) ______ participants.

[单项选择]

International trade fairs have become extremely important venues for conducting business, yet very few domestically based sales organizations have an understanding of how to take advantage of the opportunities that these shows present. Unlike U.S. trade shows, at which there is an open display of one’s goods and services and a lot of looking but no buying, a European trade show is relatively closed and only open to those who are there to conduct business. The U.S. company often will spend a lot of money to set up an open display with charming sales people with little seniority or authority. The exhibit is saying, in effect, everyone and anyone is welcome but do not ask too many questions or expect to conduct any serious business. A comparable German exhibit will be more like a fortress where savvy gatekeepers will quickly weed out all but the most important clients who, once allowed into the inner sanctum, will meet directly with senior managers. The message that this exhib
A. unsatisfactorily-conducted
B. businessman-targeted
C. delicately-decorated
D. profit-oriented

[单项选择]Car telephones have become increasingly popular because they permit people to make or receive business calls while driving. As an additional benefit, motorists can quickly call for help in the event of an accident or breakdown. Nevertheless, car telephones should be prohibited because their use causes hazardous driving.
It can be concluded from the statements above that the author is committed to the troth of which of the following statements
A. The increasing popularity of car telephones is due primarily to the fact that they permit motorists to call for help in the event of an accident.
B. The reason that the use of car telephones causes hazardous driving is that while dialing calls drivers cannot keep both hands on the wheel.
C. The advantages afforded by car telephones do not outweigh the risks of hazardous driving created by them.
D. In order to dial or receive telephone calls, drivers must momentarily take their eyes off the road, and this practice is hazardous.
E. (E) The ability to use car telephones to call for help is a more important advantage than the ability to use these phones to engage in business calls.

[填空题]International economic links have become tighter and tighter,__________________________. (正对世界经济、经济、和社会的发展产生着重要影响)

[填空题]What kind of difficulty do doctors usually have according to the passage They are usually too busy to ask ______

[填空题]

While Americans have become ever more dependent upon electricity in their daily lives, a crucial part of the system that supports their way of life has not kept up. Yes, the country has built more power plants enough to create a glut of power in most parts of the country,
41． _____________________.
California’s disastrous partial energy deregulation and the role played by Enron and other energy marketing companies in its power crisis have impeded changes in the national ability to deliver power.
42． _____________________. Moreover, the deficiency also includes inadequate coordination among the regions in managing the flow of electricity. These interregional weaknesses are so far the most plausible explanation for the blackout on Thursday.
43． _____________________. The problem is with the system of rules, organization, and oversight that governs the transmission networks. It was set up for a very different era and is now caught in a difficult

[单项选择]

Video games have become increasingly realistic, especially those involving armed combat. America’s armed forces have even used video games (1) recruitment and (2) tools. But the desire to play games is not the (3) why the United States Air Force recently (4) a procurement request for 2,200 Sony PlayStation 3 (PS3) video-game consoles. It intends to link them (5) to build a supercomputer that will (6) Linux, a free, open-source operating system. It will be used for research, including the development of high-definition imaging systems for radar, and will cost around one-tenth as much as a conventional supercomputer. The air force has already built a smaller computer (7) a cluster of 336 PS3s.
This is merely the latest example of a(n) (8) trend. There is a long tradition of technology developed for military use filtering (9) to consumer markets: satellite-navigation systems (10)
A. heavy
B. intellect
C. sophisticated
D. intensive