单选题This passage most probably appear______.

单选题Customer. I'd like to send this gift to a friend in Italy. Clerk: ______ A. Have you got anything to declare? B. How nice! C. I'm pleased to serve you. D. Could you fill out this form?

单选题Many ______ will be opened up in the future for those with a university education.

单选题Jackson is not ______ as you imagine. A. so a big fool B. so big a fool C. such big a fool D. a such big fool

单选题Many of those who come from the countryside find it difficult to adapt to the rapid ______ of modern life. A. rate B. pace C. growth D. speed

单选题From the table we can see______ .do better in speaking loudly and clearly and treating all pupils equally.

单选题The furniture delivered by the shop is quite different from ______ in the exhibition hall. A. that B. those C. the one D. the ones

单选题He is a brilliant scholar and is everywhere recognized ______. A．as it B．being such C．as such D．being true

单选题Only after a baby seal is pushed into the sea by its mother ______ to swim. A. how will it learn B. will it learn how C. it will learn how D. and it learns how

单选题The next decade could see commuters speeding to work at about 300 miles per hour aboard magnetic levitation vehicles, according to a report by Argonne National Laboratories. But before "maglev" vehicles can become commercial successes, the report says, people need to stop thinking of them as high-speed trains. Instead, consider them low-flying aircraft. Argonne contends that maglev vehicles will be best suited to replace commuter aircraft. Plane flights under 600 miles are the least energy-efficient, and maglev "planes" should cut these fuel needs by up to 75 percent. Reportedly, the money saved by a 2,000-mile maglev network linking major cities world more than pay for its construction in 20 years. The quiet purr of levitating crafts would also be a balm for neighborhoods tormented by the roar of conventional takeoffs and landings. The technology behind magnetic levitation is already well understood, the report notes. The west Germans and the Japanese already well understood, the report notes. The West Germans and the Japanese have several full-scale working models. Meanwhile, research in the United States has lapsed.

单选题A: Is everyone always so helpful to you in your office?B: ______

单选题According to the forecast, ______.

单选题It is an advertisement for ______.

单选题The new prestige of the British graduates is the most spectacular because in the past Britain has been much (1) interested in universities and degrees than other advanced countries—or even some backward (2) In 1901 Ramsay Muir observed that Britain had (3) universities per head than any other civilized country in Europe except Turkey. A UNESCO survey in 1967 (4) Britain was still close to the bottom in Europe, in (5) of the proportion of the age-group from twenty to twenty-four who were enrolled in (6) education. Most continental countries in the last decade have expanded (7) higher education faster than Britain. University statistics are notoriously difficult to compare, because of the different implications of the word "student"; in most continental countries anyone who (8) his final school exam—the baccalaureat (中学毕业会考)—is entitled to go into the university on the principle of "let him pass"; but he has (9) guarantees of tuition or personal attention. Partly as a result there are far more drop-outs and "ghost students"; in France half the students never become graduates. A comparison of graduates, as opposed (10) students, shows Britain in more favorable light, for most British students take a degree. (11) even in terms of graduates, Britain is still (12) in the Europe league. Going to university is a much more solid (13) among the sons of the bourgeoisie in France or Germany than in (14) ; many of the British middle-classes— (15) the shopkeepers and small-business men—have tended to be skeptical, if (16) actually hostile, to university education for their children, and there are still rich and quite intelligent parents who will prefer their children to go straight (17) school into the city, to the army (18) to farming but the attractions of a BA or an MA have penetrated into areas, (19) among the rich and the poor, where they would not have been felt twenty (20) ago; and they are far-reaching.

单选题The price of beer ______ from 40 cents to $4 per liter during the summer season.

单选题We have no figures on the number of workers employed in the ______ stages of iron production.

单选题A long time ago, at a national conference on biology, he cautiously ______ his new theory on life.

单选题Edie: I think Professor Holt is smart and sha's really a good teacher. Rosa: OK. FI1 try to get into her class. Edie:______!

单选题The (development) of (professional) sports in our country (dates) back (to nineteenth) century.

单选题People talked about a promising idea: using the electrical wiring already in the house to move data from room to room. One early application, the X10 system for controlling lights and appliances, didn"t always work well. The technology was certainly not ready to be used to bring web pages to computers anywhere in the house. Along came the wireless network. For $ 50, you could get the Ethernet sprayed across the house and never be confined by a cord to the wall. It was slow in those early days, very unreliable, and open to interruption if you couldn"t bother with setting up the encoded passwords. But it caught on. According to estimates made by Parks Associates, a market research firm based in Dallas, about 12.5 million homes now have wireless networks; another 10 million homes, mostly newer ones, have Ethernet. Cheap and prevalent is a hard combination to beat. However, technology companies continued to work on the idea. A version for power lines called Home Plug came out in 2002, and while it hardly affected sales of wireless network equipment, it sold enough that major companies like Intel, Cisco Sony, Sharp and Comcast created the Home Plug Alliance to push for next-generation products, with the first to come out later this year. Some companies are not waiting. Panasonic, Netgear, Maranta are already offering products that will move data through home electrical lines faster than routers using the current Wi-Fi standard for wireless networking. Panasonic started selling its HD-PLC Ethernet adapters for power lines last month. One adapter is attached to a router with a short Ethernet cable and plugged into a nearby wall socket. The second device is plugged into a socket elsewhere in the house. When a computer is linked to it with an Ethernet cable, data is transmitted through the home"s electrical wiring at speeds of up to 190 megabits a second. Netgear will be selling a similar system next month for about $ 300. It moves data at a slightly faster rate. Marantz says its ZR6001SP receiver will send music to special speakers in another room over power lines. The system includes both devices. The music listener controls the receiver and the CD players connected to it form a control pad on the speakers. These products seem hopeless candidates. Who would like to pay two or three times expensive than wireless network? The answer lies in simplicity. "It"s why most people need us," Robert said, noting the complexity of installing wireless network is evident by the fact that return rates on wireless networking devices drop to nearly zero. The three products" makers said that people who cannot get whole-house coverage with a wireless system or those plagued by dead zones might find it appealing.