单选题God is believed to be omnipotent.A. everlastingB. extraordinaryC. all-powerfulD. important

单选题The phrase "coming back out of the cave" in the fifth paragraph means

单选题 下面的短文后列出了7个句子，请根据短文的内容对每个句子做出判断：如果该句提供的是正确信息，请选择A：如果该句提供的是错误信息，请选择B；如果该句的信息文中没有提及，请选择C。 {{B}} Earthquake{{/B}}{{B}}How does an earthquake start?{{/B}}What makes an earthquake happen? The rock of the earth's crust (地壳) may have a 'fault', a kind of break in the surface. The blocks which make up the earth move, and sometimes this may cause the sides of the fault to move up and down or lengthways (纵向地) against each other. When one piece of rock starts to rub on another with great force, a lot of energy is used. This energy is changed into vibrations (振动) and it is these vibrations that we feel as an earthquake. The vibrations can travel thousands of kilometers and so an earthquake in Turkey may be felt in Greece.{{B}}What to do during an earthquake?{{/B}}{{B}}At school{{/B}}As soon as the earthquake starts, students should get under the desks immediately and wait until the teacher tells them it is safe to come out. The teacher should, at the same time, go immediately to the teacher's desk, get underneath (在 ...... 下面) it and stay there till the danger is over. Students must not argue with the teacher or question instructions. As soon as the tremors (震动) stop, all students should walk towards the exit and go straight to the school playground or any open space such as a square or a park. They must wait there until the teacher tells them it is safe to go.{{B}}At home{{/B}}If you are at home when the earthquake occurs, get immediately under the table in the living room or kitchen. Choose the biggest and strongest table you can find. You must not go anywhere near the window and don't go out onto the balcony (阳台). Once the tremors have stopped, you can come out from under the table but you must leave the building straight away. You should walk down the stairs and should not use the lift - there may be a power cut as a result of the earthquake and you could find yourself trapped inside the lift for hours.{{B}}In the street{{/B}}If you are in the street when the earthquake takes place, do not stand near buildings, fences or walls -move away as quickly as possible and try to find a large open space to wait in. Standing under trees could also be dangerous.

单选题Not all the solar energy released by the sun reaches the earth's surface. About 34% is scattered into space by the gases or dust in the atmosphere. Another 19% is absorbed by the different layers of the atmosphere. The remaining 47% finally reaches the ground where it is absorbed as heat. How much of the solar energy is absorbed as heat?A. 19%B. 34%C. 53%D. 47%.

单选题Regular visits from a social worker can be of immense value to old people living alone.

单选题Poor people queued up to wait for free food.A. linedB. stoodC. gotD. registered

单选题The food is insufficient for three people.

单选题They talked for about an hour of things and persons ______ they remembered in the school.A. whichB. thatC. whoD. whom

单选题The troposphere is the warmest part of the atmosphere because it _______.

单选题She was close to success. A．fast B．quick C．near D．tight

单选题Technological Utopia for Developing Countries Cyberspace (网络空间), data superhighways, multimedia for those who have seen the future, the linking of computers, television and telephones will change our lives forever. Yet for all the talk of a forthcoming technological Utopia (乌托邦), little attention has been given to the implications of these developments for the poor. As with all new high technology, while the West concerns itself with the "how", the question of "for whom" is put aside once again. Economists are only now realizing the full extent to which the communications revolution has affected the world economy. Information technology allows the extension of trade across geographical and industrial boundaries, and transnational corporations take full advantage of it. Terms of trade exchange, interest rates and money movements are more important than the production of goods. The electronic economy made possible by information technology allows the haves to increase their control on global markets with destructive impact on the have-nots. For them the result is instability. Developing countries which rely on the production of a small range of goods for export are made to feel like small parts in the international economic machine. As "futures" (期货) are traded on computer screens, developing countries simply have less and less control of their destinies. So what are the options for regaining control? One alternative is for developing countries to buy in the latest computers and telecommunications themselves—so-called "development communications" modernization. Yet this leads to long-term dependency and perhaps permanent constraints on developing countries" economies. Communications technology is generally exported from the U.S., Europe or Japan; the patents, skills and ability to manufacture remain in the hands of a few industrialized countries. It is also expensive, and imported products and services must therefore be bought on credit—credit usually provided by the very countries whose companies stand to gain. Furthermore, when new technology is introduced there is often too low a level of expertise to exploit it for native development. This means that while local elites, foreign communities and subsidiaries of transnational corporations may benefit, but not developing countries.

单选题Astronomers are particularly interested in Eta Carinae because

单选题The sea turtle's natural habitat has been {{U}}considerably{{/U}} reduced. A. suddenly B. greatly C. generally D. slightly

单选题Is the Internet Broken? Google's Gmail system, which serves millions of customers around the world, shut down yesterday. Twitter, the micro-blogging service used by tens of millions of people, went off-line last month. It blamed the trouble on a malicious programmer in Russia who was trying to shut down the account of a user in neighboring Georgia. It is astonishing the local actions of a small number of programmers call bring an entire Internet service to its knees, but that have been the case. The Internet as it is set up now operates at three levels. The first is the servers that store data and content for use by customers. Google and other large companies keep massive server farms. These are well-protected from outside programmers by sophisticated software, but clearly that does not always work. The protection devices may fail more and more often as hackers get more skillful. The second part of the Interact is the "pipes" that carry data, video, e-mail messages, and text of websites from companies such as Google, Yahoo!, and Twirler, that make up Interact content and services to customers. Some of these" pipe" providers, specifically telecom and cable companies, are already complaining that the amount of data that they have to move is rising too rapidly for them to accommodate. Video files, which are particularly large, have posed significant problems to cable companies. The last piece of the Interact is the end user, the companies and consumers who have tire PCs. Perversely, these PCs are also the tools by which hackers build malicious code that they send out to compromise the effectiveness of the servers to destroy the data transport system which is at the core of the worldwide web's operations. The problem of online outages is as old as the internet itself, AOL's dial-up 56k service would go down regularly in the mid-1990s. The company did not have enough modems to keep up with demand. The Internet for the last decade may not be the Internet for tire future. The prophylactic software that was meant to protect the web is less effective. Like anything else that is used regularly whether it is a car, a light bulb, or a PC, the Internet is going to have to be upgraded more often now. It won't work every hour of every day anymore.

单选题The ability to contemplate two contradictory thoughts at once is said to be a mark of genius.

单选题The shopkeeper gave us short weight : we got 9 kilos instead of 10 kilos.

单选题阅读下面的短文，文中有15处空白，每处空白给出了4个选项，请根据短文的内容从4个选项中选择1个最佳答案。 {{B}}College Sports in the US{{/B}} College sports in the United States are a huge deal. Almost all major American universities have football, baseball, basketball and hockey programs, and devote millions of dollars each year to sports. Most of them earn millions{{U}} (51) {{/U}}as well, in television revenues, sponsorships. They also benefit{{U}} (52) {{/U}}from the added publicity they get via their teams. Big-name universities{{U}} (54) {{/U}}each other in the most popular sports. Football games at Michigan regularly draw crowds of over 90,000. Basketball’s national collegiate championship game is a TV (54) on a par with(与……相同或相似)any other sporting event in the United States,{{U}} (55) {{/U}}perhaps the Super Bowl itself. At any given time during fall or winter one can{{U}} (56) {{/U}}one’s TV set and see the top athletic programs—from schools like Michigan, UCLA, Duke and Stanford—{{U}} (57) {{/U}}in front of packed houses and national TV audiences. The athletes themselves are recruited and provided with scholarships. College coaches identify{{U}} (58) {{/U}}teenagers and then go into high schools to{{U}} (59) {{/U}}the country’s best players to attend their universities. There are strict rules about{{U}} (60) {{/U}}coaches can recruit—no recruiting calls after 9 p. m., only one official visit to a campus — but they are often bent and sometimes{{U}} (61) {{/U}}. Top college football programs offer scholarships to 20 or 30 players each year, and those student-athletes, when they arrive{{U}} (62) {{/U}}campus, receive free housing, tuition, meals, books, etc. In return, the players{{U}} (63) {{/U}}the program in their sports. Football players at top colleges{{U}} (64) {{/U}}two hours a day, four days a week from January to April. In summer, it’s back to strength and agility training four days a week until mid-August, when camp{{U}} (65) {{/U}}and preparation for the opening of the September-to-December season begins. During the season, practices last two or three hours a day from Tuesday to Friday. Saturday is game day. Mondays are an officially mandated day of rest.

单选题The word ―sustainable in the last paragraph is closest in meaning to __________ .

单选题Shelly had prepared carefully for her biology examination so that she could be sure of passing it on her first endeavor .

单选题Who absorb low-level radiation at a higher rate than the others?