单选题When an invention is made, the inventor has three possible courses of action open to him: he can give the invention to the world by publishing it, keep the idea secret, or patent it. A granted patent is the result of a bargain struck between an inventor and the state, by which the inventor gets a limited period of monopoly and publishes full details of his invention to the public after that period terminates. Only in the most exceptional circumstances is the lifespan of a patent extended to alter this normal process of events. The longest extension ever granted was to Georges Valensi; his 1939 patent for color TV receiver circuitry was extended until 1971 because for most of the patent's normal life there was no colour TV to receive and thus no hope of reward for the invention. Because a patent remains permanently public after it has terminated, the shelves of the library attached to the patent office contain details of literally millions of ideas that are free for anyone to use and, if older than half a century, sometimes even re-patent. Indeed, patent experts often advise anyone wishing to avoid the high cost of conducting a search through live patents that the one sure way of avoiding violation of any other inventor's right is to plagiarize a dead patent. Likewise, because publication of an idea in any other form permanently invalidates further patents on that idea, it is traditionally safe to take ideas from other areas of print. Much modern technological advance is based on these presumptions of legal security. Anyone closely involved in patents and inventions soon learns that most "new" ideas are, in fact, as old as the hills. It is their reduction to commercial practice, either through necessity or dedication, or through the availability of new technology, that makes news and money. The basic patent for the theory of magnetic recording dates back to 1886. Many of the original ideas behind television originate from the late 19th and early 20th century. Even the Volkswagen rear engine car was anticipated by a 1904 patent for a cart with the horse at the rear.

单选题{{B}}Directions:{{/B}} There are 5 reading passages in this part. Each passage is followed by some questions or unfinished statements. For each of them there are four choices marked A, B, C, and D. You should decide on the best choice and mark your answer on the ANSWER SHEET by blackening the corresponding letter in the brackets. Albert Einstein once attributed the creativity of a famous scientist to the fact that he "never went to school, and therefore preserved the rare gift of thinking freely". There is undoubtedly truth in Einstein's observation. Many artists and geniuses seem to view their schooling as a disadvantage. But such a truth is not a criticism of schools. It is the function of schools to civilize, not to train explorers. The explorer is always a lonely individual whether his or her pioneering be in art, music, science, or technology. The creative explorer of unmapped lands shares with the genius what William James described as the "faculty of perceiving in an unhabitual way". Insofar as schools teach perceptual patterns they tend to destroy creativity and genius. But if schools could somewhat exist solely to cultivate genius, then society would break down. For the social order demands unity and widespread agreement, both traits are destructive to creativity. There will always be conflict between the demands of society and the impulses of creativity and genius.

单选题The differences between the male and female of this species become more ______ with age.

单选题The loss of lusitania and so many of its passengers, including 128 U.S. citizens, aroused a wave of indignation in the United States. A. perplexity B. wrath C. distress D. skepticism

单选题 When most people think about changing their body shape, they usually focus on just losing weight. Books and magazines about dieting are among the most popular in the world. Dieting is an important part of staying fit and healthy, but losing weight by means of dieting takes time, losing weight too fast can cause great health problems. Dieting means changing one's eating habits to a healthier pattern, but many women mistake the concept of dieting and think that the less one eats, the better. As a result, they lose health as well as weight. Aerobic exercise is a moderate intensity workout that, over a certain period of time, will improve the body's use of oxygen. Nowadays aerobic exercise has become a very trendy workout among youths. Not only is performing aerobic exercise interesting, but it is also very beneficial for health. There are different types of aerobics like jogging, swimming, kickboxing, fitness walking, inline skating, bicycling, etc. Aerobics strengthens the heart and lungs. It is also especially popular with women. But neither of these two methods, dieting and aerobics, can help shape the body. To do this you need to build muscle. So, if a firmer and shapelier body is your goal, 60 percent of your exercise routine should involve strengthening moves, and only 30 percent should be aerobic exercises. For a proper body-shaping routine, you should plan three strength-training sessions a week with weights. Use weights which are as heavy as possible while still allowing you to do 8 to 12 reps of each exercise. Do one to three exercises for each muscle groups-for example, chest and biceps, or back, shoulders and triceps. You should combine this with fast-paced aerobics activities, like swimming, cycling, walking, running, or in-line skating, plan three to four workouts a week, 15 to 20 minutes each, increasing the pace each week. As you build muscle, you may find that you gain weight in spite of all of your calorie-burning exercise. Don't worry. It's probably muscle, which is denser than fat. And muscle is also a calorie-burning tissue. With more muscle, you can burn more calories, even when you are not exercising. When you are trying to build muscle, you need two to three serving of protein a day, but the main part of your diet should be carbohydrates. And in order to get the energy you need for a high-intensity workout, you should eat something, especially carbohydrates, an hour or so before your workout. While weight training wilt firm and shape your body, it has other benefits too. It improves bone and muscle strength and burns calories, leading to improved health and a higher quality of life.

单选题Though the wide universe is full of good, kernel of nourishing corn can come to (man) (only through) his own toil (bestowed) that plot of ground which is given him (to till).

单选题It is a common theme in many science fiction stories that the world may one day be______by insects.

单选题It is known from the passage that post-war Britain as ______.

单选题Here, so profligate has its use become the air conditioner is almost______the automobile of the national tendency to overindulge in every technical possibility, to sue every convenience to such excess that country looks downright coddled.(中国社会科学院2006年试题)

单选题Dimpy, the girl named in this passage ______.

单选题The writer implies that ______.

单选题I wish to______a master's degree in electric engineering after I graduate from college.

单选题England, Scotland and Wales______ the island of Great Britain.

单选题In many simple organisms, including bacteria and various protists, the life cycle is completed within a single generation: an organism begins with the fission of an existing individual; the new organism grows to maturity; and it then splits into two new individuals, thus completing the cycle.

单选题Crisis would be the fight term to describe the ______ in many animal species.

单选题The Supreme Court ______ the judgment of the lower court.

单选题He was wet to the skin, his whole body was ______ and trembling.

单选题With a wave of his hand, the magician made the duck ______

单选题The kitchen was small and ______ so that the disabled woman could reach everything without difficulty. A.complete B.complex C.composite D.compact