单选题Since most doctors are______ about effectiveness of the new medicine, they seldom recommend it to their patients.(2003年南京大学考博试题)

单选题The unprecedentedly big floods in our village did not start to______until four days after the torrential rain had stopped.

单选题Since he started working at the age of 20, he has not______turned to his father for money.

单选题What's the world's greatest moral challenge, as judged by its capacity to inflict human tragedy? It is not, I think, global warming, whose effects—if they become as grim as predicted—will occur over many years and provide societies time to adapt. A case can be made for preventing nuclear proliferation, which threatens untold deaths and a collapse of the world economy. But the most urgent present moral challenge, I submit, is the most obvious: global poverty. The solution to being poor is getting rich. It's economic growth. We know this. The mystery is why all societies have not adopted the obvious remedies. Just recently, the 21-member Commission on Growth and Development examined the puzzle. Since 1950, the panel found, 13 economies have grown at an average annual rate of 7 percent for at least 25 years. The panel identified five common elements of success: Openness to global trade and, usually, an eagerness to attract foreign investment; political stability and "capable" governments "committed" to economic growth; high rates of saving and investment, usually at least 25 percent of national income; economic stability, keeping government budgets and inflation under control and avoiding a broad collapse in production; a willingness to "let markets allocate resources," meaning that governments didn't try to run industry. Of course, qualifications abound, still, broad lessons are clear. Globalization works. Countries don't get rich by staying isolated. Those that embrace trade and foreign investment acquire know-how and technologies, can buy advanced products abroad, and are forced to improve their competitiveness. The transmission of new ideas and products is faster than ever. There is a role for foreign aid, technical assistance and charity in relieving global poverty. But it is a small role. It can improve health, alleviate suffering from natural disasters or wars, and provide some types of skills. But it cannot single: handedly stimulate the policies and habits that foster self-sustaining growth. Japan and China have grown rapidly not because they received foreign aid but because they pursued pro-growth policies and embraced pro-growth values. The hard question is why all societies haven't adopted them. One reason is politics; some regimes are more interested in preserving their power and privileges than in promoting growth. But the larger answer, I think, is culture, as Lawrence Harrison of Tufts University argues. Traditional values, social systems or religious views are often hostile to risk-taking, wealth accumulation and economic growth. In his latest book, Harrison contends that politics can alter culture, hut it isn't easy. Globalization has moral as well as economic and political dimensions. The United States and other wealthy countries are experiencing an anti-globalization backlash. Americans and others are entitled to defend themselves from economic harm, but many of the allegations against globalization are wildly exaggerated. By making globalization an all-purpose scapegoat for economic complaints, many "progressives" are actually undermining the most powerful force for eradicating global poverty.

单选题We were late as usual. My husband had (21) watering the flowers in the garden by himself, and when he discovered that he couldn't manage, he asked me for (22) at the last moment. So now we had only one hour to get to the airport. Luckily, there were not many cars (23) buses on the road and we were (24) to get there .just in time. We checked in and went straight to a big hall to wait for our flight to be called. We waited and waited (25) no announcement was made. We asked for (26) and the girl there told us the plane hadn' t even arrived yet. In the end, there came an announcement telling us that those (27) for flight No. 108 could get a free meal voucher and that the plane hadn't left Spain (28) technical problems. We thought that meant (29) it wasn' t safe for the plane to (30) We waited again for a long time until late evening when we were asked to report again. This time we were (31) free vouchers to spend the night in a nearby hotel. The next morning after a (32) night because of all the planes taking off and landing, we were reported back to the airport. Guess (33) had happened while we were asleep. Our plane had arrived and taken off again. All the other (34) had been waken up in the night to catch the plane, but for some reasons or other we had been (35) You can imagine how we felt!

单选题You can hang up what you like on these ______ walls.

单选题The scarcity of TV selection according to the text

单选题Under ethical guideline recently adopted by the National Institutes of Health, human genes are to be manipulated only to correct disease for which ______ treatments are unsatisfactory.(2014年北京航空航天大学考博试题)

单选题What is often served before one's order?

单选题Bob Dylan is ______.

单选题Online dating can be a fun and non-threatening way to re-enter the dating scene. One plus is that it can actually help you narrow down the 1 you"re looking for in a mate, while also 2 the qualities you possess that are most unique and 3 . Here are some online dating tips to keep in mind as you get started: 1. Be Honest in Your Profile There"s no need to 4 your best qualities when you write up your online dating profile. Just be yourself. You"ll probably find through this experience that the physical, emotional, and intellectual qualities you bring are 5 sufficient to attract numerous candidates. 2. Use Quality Photos in Profile Make sure you use a quality digital photograph that meets the recommendations 6 by the service you"ve chosen to use. 3. Limit the Time on Online Dating Sites You can quickly feel "addicted" to logging on and perusing the latest additions. 7 lose your valuable time to a computer screen, put a limit on the amount of time you"ll spend online each day, and stick to it. 4. Take Your Online Dating Relationships Slow Online dating is meant 8 be a gradual process. You can begin to E-mail back and 9 with the members who catch your interest. 5. A Final Thought：Use Caution Many people who"ve had extremely successful experiences. However it would be quite easy for an individual to 10 his or her worst qualities during the early stages of online dating. To protect yourself, you must avoid giving out too much personal information.

单选题What can we infer from paragraph five in this passage?______

单选题In the third paragraph, the word "prospective" probably means ______.

单选题The manager has got a good business ______ so the company is doing well.A. ideaB. senseC. thoughtD. thinking

单选题According to the second paragraph, it can be found by researchers that______.

单选题According to the passage, meat will completely disappear in the future because ______.

单选题26.______ there is a good reason for her absence, as she doesn't usually stay away from work.

单选题All the passengers were ______ wounded in the road accident.A. more and moreB. by and byC. more or lessD. little and little