单选题Including talking books in their collections is a good example of____.

单选题The temple ______ used as a place of worship since Roman times.

单选题Too many hotels have been built and this has ______ prices, making holidays cheaper.

单选题Man: Are you sure this is the right way to get to the airport? My flight will depart in forty minutes. Woman: Sure. This is a shortcut. We"ll be there soon. Question: What does the woman mean?

单选题 Colleges in the US have added a new subject, “great chemistry”, to their curriculum today. “Green chemistry __51__ how we can develop products that won’t __52__ the environment,” explains Paul Anastas, director of Yale University’s Center for Green Chemistry and Green Engineering, opened at the beginning of this year. The American Chemical Society, __53__ approves more than 600 college chemistry programs, only lists about a dozen that teach green chemistry. But that __54__ is growing.Cambridge College in Massachusetts is offering “ an introduction to green chemistry” course this gall and is offering the nation’s first bachelor’s and master’s __55__ in green chemistry. The program will have classes in environmental science and even environmental __56 __and policy. These subjects are not __57__ taught to chemistry major.Employers __58__ the introduction of green chemistry. Businesses are increasing seeking graduates __59__ backgrounds in the subject because it can help them make or save money in he development and manufacturing of products. “We need people who can not only understand their place __60__, but also understand the worldwide perspective,” said Adam Peterson, a chemical division manager at Dow Corning Corp.

单选题Comparisons were drawn between the development of television in the 20th century and the diffusion of printing in the 15th and 16th centuries. Yet much had happened (51) . As was discussed before, it was not until the 19th century that the newspaper became the dominant pre-electronic (52) , following in the wake of the pamphlet and the book and in the company of the periodical. It was during the same time that the communications revolution (53) up, beginning with transport, the railway, and leading on through the telegraph, the telephone, radio, and motion pictures (54) the 20th-century world of the motor car and the air plane. Not everyone sees that process in perspective. It is important to do so. It is generally recognized, (55) , that the introduction of the computer in the early 20th century, followed by the invention of the integrated circuit during the 1960s, radically changed the process, (56) its impact on the media was not immediately (57) . As time went by, computers became smaller and more powerful, and they became "personal" too, as well as (58) , with display becoming sharper and storage (59) increasing. They were thought of, like people, (60) generations, with the distance between generations much smaller.

单选题In ancient Greek, the term euthanatos meant "easy death". Today euthanasia (安乐死) generally refers to mercy killing, the voluntary (自愿) ending of the life of someone who is terminally ill. Like abortion, euthanasia has become a legal, medical, and moral issue over which opinion is divided. Euthanasia can be either active or passive. Active euthanasia means that a physician or other medical personnel takes an action that will result in death, such as giving an overdose of deadly medicine. Passive euthanasia means letting a patient die for lack of treatment, or stopping the treatment that has begun. Examples of passive euthanasia include taking patients off a breathing machine or removing other life-support systems. Stopping the food supply is also considered passive. A good deal of the debate about mercy killing originates from the decision-making process. Who decides whether a patient is to die? This issue has not been solved legally in the United States. The matter is left to state law, which usually allows the physician in charge to suggest the option of death to a patient's relatives, especially if the patient is brain dead. In an attempt to make decisions about when their own lives should end, several terminally ill patients in the early 1990s used a controversial suicide device, developed by Dr. Jack Kevorkian, to end their lives. In parts of Europe, the decision-making process has become very flexible. Even in cases where the patients are not brain dead, patients have been put to death without their approval at the request of relatives or at the suggestion of physicians. Many cases of passive euthanasia involve old people or newborn infants. The principle justifying this practice is that such individuals have a "life not worthy of life". In countries where passive euthanasia is not legal, the court systems have proved very tolerant in dealing with medical personnel who practice it. In Japan, for example, if physicians follow certain guidelines they may actively carry out mercy killings on hopelessly ill people. Courts have also been somewhat tolerant of friends or relatives who have assisted terminally ill patients to die.

单选题An estimated 20 percent of the U.S. population has no bank account. More than half of this group don't have credit card ______ can not get bank loans.

单选题The machines in this workshop are not regulated ______ but are jointly controlled by a central computer system. A. inevitably B. individually C. irrespectively D. irregularly

单选题Stressful environments lead to unhealthy behaviors such as poor eating habits, which ______ increase the risk of heart disease. A. in turn B. in return C. by chance D. by turns

单选题It can be inferred that through Chapter-A-Day ______.

单选题The passage was written in ______.

单选题Concerning population, China ranks high in the world, ______ some areas are sparsely settled. A. and yet B. so even C. if not D. except for

单选题Experiments in the photography of moving objects ______ in both the United States and Europe well before 1990. A. have been conducting B. were conducting C. had been conducted D. are conducted

单选题One of the requirements for a fire is that the material______to its burning temperature.

单选题He______the meeting, but upon learning that they would discuss something irrelevant to his field of study, he dropped the idea.

单选题The boy regretted having spent so much time playing when he ______ A. should have studied B. had studied C. was to study D. must study

单选题Speaker A: Oh, doesn't your daughter look lovely? Speaker B: ______ A. Oh, no. She looks just so so. B. Yes, I'm proud of her. C. Really? Why do you think so? D. Well, your daughter looks lovely, too.

单选题Man: Have you any idea what Jack Johnson's doing these days? Woman: Do you know, I've lost track of him. Question: What does the woman mean? A. She has no idea where Jack is. B. She last saw Jack at the race track. C. She's been trying to track Jack. D. Jack was lately seen driving a truck.

单选题Woman: Mr. Simpson, all the department managers are here except John. Man: Let"s get the meeting rolling. Question: What does the man mean?