A patient on the brink of death has received the world's first self--contained artificial heart--a battery--powered device about the size of a softball that runs without the need for wires,tubes sticking out of the chest.It is powered by a small battery pack worn outside the body that transmits current through the skin. Two surgeons from the University of Louisville implanted the titanium and plastic pump during a seven-hour operation at Jewish Hospital Monday.The hospital said the patient was''awake and responsive''Tuesday and resting comibrtably.It refused to eve personal details. The patient had been expected to die within a month without the operation, and doctors said they expected the artificial heart to extend the person's life by only a month.But the device is considered a major step toward inlproving the patient's quality of life. The new pump,called AbioCor,is also a technological leap from the mechanical hearts used in the l980s, which were attached by wires and tubes to large machinery outside the body.The most famous of those, the Jarvic-7,used air as a pumping device and was attached to an apparatus about the size of a washing machine. ''I think it's potentially a major step forward in the artificial heart development,''said Dr.David Faxon,president of the American heart Association.However,he said the dream of an implantable,permanent artificial heart is not yet a reality:''This is obviously an experimental device whose long--term success has to be demonstrated."Only about half of the 4,200 Americans on a waiting list for donor hearts received them last year,and most of the rest died. Some doctors,including Robert Higgins,chairman of cardiology at the Medical College of Virginia in Richmond,said artificial hearts are unlikely to replace donor hearts."A donor heart in a good transplant can last l5 to 30 years.''he said.''It's going be hard replace that with a machine.'' From the text we can know . A) the patient recovered completely B) the patient got better after the operation C) the patient refused to obtain a donor heart D) the patient died a month later after the heart implantation
B
Londoners are great readers. They buy vast numbers of newspapers and magazines and of books -- especially paperbacks , which are still comparatively cheap in spite of ever-increasing rises in the costs of printing. They still continue to buy "proper" books, too, printed on good paper and bound between hard covers. There are many streets in London containing shops which specialize in book-selling. Perhaps the best known of these is Charring Cross Road in the very heart of London. Here bookshops of all sorts and sizes are to be found, from the celebrated one which boasts of being "the biggest bookshop in the world" to the tiny, dusty little places which seem to have been left over from Dickens' time. Some of these shops stock , or will obtain, any kind of book, but many of them specialize in second-hand books, in art books, in foreign books, in books on philosophy, politics or any other of the myriad subjects about which books may be written. One shop in this area specializes only in books about ballet! Although it may be the most convenient place for Londoners to buy books, Charring Cross Road is not the cheapest. For the really cheap second-hand volumes, the collector must venture off the beaten track, to Farringdon Road, for example, in the East Central district of London. Here there is nothing so impressive as bookshops. Instead, the booksellers come along each morning and pour out their sacks of books onto small barrows which line the gutters . And the collectors, some professionals and some amateurs , have been waiting for them. In places like this one can still, occasionally, pick up for a few pence an old volume that may be worth many pounds. The best topic for this passage is " _ ". A) Bookshops in London B) The biggest bookshop in the world C) Charring Cross Road D) Buying books in London
D
Q: Here are some interesting places in America: Lake Placid Lake Placid in New York State has everything you want: great downhill skiing , great golf courses, and ponds for swimming. It is also a beautiful village with shops, restaurants, and hotels. It is well-known as the place of the 1932 and 1980 Winter Olympics. While many travelers visit here for outdoor activities, others come to this beautiful town simply to get away from cities and enjoy the clean mountain air. Whether you come to Lake Placid for adventure or rest, you'll surely enjoy your stay here. Old Forge Located in New York State, Old Forge is a deeply-wooded town with many rivers and lakes. It is a place where many people come to spend their summers. Biking, boating, and skiing are all popular sports in Old Forge. And on rainy days, the town's small shops become the best places for people to look for special local gifts. If you are looking for a quiet place to keep away from trouble, Old Forge is a good choice. Leavenworth This comfortable mountain village is just a few hours' drive to the east of Seattle. Many people from Seattle and from the rest of the country come here to enjoy the local shops and delicious German food. Outside of Leavenworth, you will find some of the best views in Washington. High mountains rise from the wooded valleys and rivers run through the forests. There is no doubt that the environment is what makes Leavenworth such a special place for visitors. Lake Placid is the best place for _ . A) runners B) swimmers C) cyclists D) horse riders
A: B
Q: Fucheng Garden Villas is situated along the North 4th Ring Road,just 2 kilometres east away from the Asian Games Village with easy traffic connection.It is 5 kilometres from the Beijing Lufthansa Centre. Fucheng Garden Villas occupies an area of 34.7 hectares,over 80% of which is covered by trees and green,just like a garden in the city. All the 108 villas were designed by American Company IDI,in American style,luxurious besides comfortable. All materials of the construction and decoration as well as equipment are famous American products. From June 25 to July 31,1997,preferential prices for sale and rent are offered.You can move into Fucheng Garden Villas on signing an agreement. Bank will provide a 50% mortgage for 5 years. Overseas sales License: NO.124. Developer: Beijing Hongda Read Estate Co.Ltd. 60 East,North 4th Ring Road,Chaoyang District,Beijing. Tel:(8610)64967050 64967049 Fax:(8610)64933575 How many hectares is Fucheng Garden Villas covered by trees and greens? A) 6.94 B) More than 27.76 C) 27.76 D) 80%
A: B