单选题The company recommended that a new petrol station be built here.A. demandedB. suggestedC. insistedD. ordered

单选题She cried aloud all at once .

单选题Amidst the second worst recession in United States history, thrifty consumers are turning to the interact to take advantage of special offers. Emily, a California school teacher and full time mother, is one such consumer. It all started about three months ago when she bought all authentic Coach pocketbook on sale for only $ 55 (75% off the retail price). She was determined to seek out other great offers and recently made her best find. Emily discovered a clever way of combining two different teeth whitening offers fromtwo different companies - Dazzle White and Total White - to get results similar to that of a professional whitening done by a dentist. Rather than spending $ 500 at her local dentist to attain a perfect smile, she was able to do SO for less than $ 5by using free trial offers she found online. Emily got her teeth whitenedA. going to her local dentist.B. spending a lot of money buying products.C. using free trial offers online.D. brushing her teeth many times a day.

单选题A. have healing effects B. be used externally C. be promoted D. help the disabled E. be further explored F. suit different people Aromatherapy is a mixture oil from parts of the plants to ____.

单选题Since rhetoric is the art of calculated polemic and has persuasion as its goal, can it be considered a verbal science?A. competitionB. objectiveC. subjectD. core

单选题He emphasized a {{U}}feasible{{/U}} plan which can be accepted by the both sides. A.favorable B.possible C.formal D.genuine

单选题Once-daily Pill Could Simplify HIV Treatment Bristol-Myers Squibb and Gilead Sciences have combined many HIV drugs into a single pill. Sometimes the best medicine is more than one kind of medicine. Malaria, tuberculosis and HIV/ AIDS, for example, are all treated with (1) of drugs. But that can mean a lot of pills to take. It would be (2) if drug companies combined all the medicines into a single pill, taken just once a day. Now, two companies say they have done that for people just (3) treatment for HIV, the virus that causes AIDS. The companies are Bristol-Myers Squibb and Gilead Sciences. They have (4) a single pill that combines three drugs currently on the market. Bristol-Myers Squibb sells one of them (5) the name of Sustiva. Gilead combined the (6) , Emtriva and Viread, into a single pill in two thousand four. Combining drugs involves more than (7) issues. It also involves issues of competition (8) the drugs are made by different companies. The new once-daily pill is the result of (9) is described as the first joint venture agreement of its kind in the treatment of HIV. In January the New England Journal of Medicine published a study of the new pill. Researchers compared its (10) to that of the widely used combination of Sustiva and Combivir. Combivir (11) two drugs, AZT and 3TC. The researchers say that after one year of treatment, the new pill suppressed HIV levels in more patients and with (12) side effects. Gilead paid for the study. Professor Joel Gallant at the Johns Hopkins School of Medicine in Baltimore, Maryland, led the research. He is a paid adviser to Gilead and Bristol-Meyers Squibb as well as the maker of Combivir, Glaxo Smith Kline. Glaxo Smith Kline reacted (13) the findings by saying that a single study is of limited value. It says the effectiveness of Combivir has been shown in each of more than fifty studies. The price of the new once-daily pill has not been announced. But Gilead and Bristol-Myers Squibb say they will provide it at reduced cost to developing countries. They plan in the next few months to ask the United States Food and Drug Administration to (14) the new pill. There are limits to who could take it because of the different drugs it contains. For example, (15) women are told not to take Sustiva because of the risk of birth disorders. Experts say more than forty million people around the world are living with HIV.

单选题If a cat comes too close to its nest, the mockingbird initiates a set of actions to protect its offspring.

单选题Heat and Health Extremely hot weather is common in many parts of the world. Although hot weather just makes most people hot, it can cause medical problems--and death. Health experts say that since the year 1900, extremely hot weather has killed more people in the United States than any other natural event. One year--the unusually hot summer of 1980--heat caused about 1,700 deaths in the United States. In 1995, more than 600 people died in a similar heat wave in one city--Chicago. To measure extreme heat, government weather experts have developed the Mean Heat Index. It measures the average of how hot it is felt all day on an extremely hot day. Experts say it is the total heat of a hot day or several hot days that can affect health. Several hot days are considered a heat wave. Experts say heat waves often become deadly when the nighttime temperature does not drop much from the highest daytime temperature. The most common medical problem caused by hot weather is heat stress. Usually, it also is the least severe. For most people, the only result of heat stress is muscle pain. The pain is a" warning that the body is becoming too hot. Doctors say drinking water will help the pain disappear after the body again has the right amounts of water and salt. For some people, however, the result is much more serious. For example, doctors say some people face a greatly increased danger from heat stress. These people have a weak or damaged heart, high blood pressure, or other problems of the blood system. Severe heat can help cause a heart attack or stroke. Health experts say this is the most common cause of death linked to hot weather.

单选题His shoes were U shined/U to perfection．

单选题A lot of people could fall ill after drinking {{U}}contaminated{{/U}} water. A. boiled B. polluted C. mixed D. sweetened

单选题 Stomach ulcers are the cause of severe pain for many people. Doctors have been able to help lessen the pain of ulcers. They could not cure them. Now doctors have discovered a cause of ulcers. This means they may have found a way to cure people who suffer from the stomach pain. Studies show that ten percent of the population will develop an ulcer at some time in their life. So a possible cure is good news for many people. Ulcers are wounds in the stomach that are similar to small cuts or tearsl. These wounds can harm the tissue in the stomach2, the pipe that carries the food to the stomach or parts of the small intestines. Fluids in the stomach then increase the pain of an ulcer. How does a person know he or she has an ulcer? Doctors say most people with ulcers feel a burning pain in their chest or stomach3. This pain often is called heartburn. It usually happens before eating or during the night. It causes some people to lose their desire to eat, or they are unable to keep food in their stomachs. Doctors believed that ulcers were caused by unusually strong stomach fluids, which damaged stomach tissue. Now they have discovered that most ulcers are caused by a bacterial organism called Hillico Bactor Pilorie or H Pilorie. H Pilorie bacteria are what make stomach produce extra stomach fluid. Doctors found that they can kill the bacteria with medicines called antibiotics. Health experts say the discovery of a cure for ulcers can save thousands of millions of dollars in medical costs. They also believe curing ulcers will reduce the number of people who develop stomach cancer. The number of people with stomach cancer is very high in Japan, Southeast Asia and parts of Africa. Doctors say a person is more likely to get an ulcer if someone in his or her family has had one. In fact a person with the family history of ulcers is three times more likely to get one than other people. There are ways people can protect themselves from developing an ulcer. Doctors say it is more important to reduce the amount of strong fluids in the stomach. To do this, doctors say, people should not smoke cigarettes or drink alcohol. And they say people should reduce tension in their lives.

单选题The price of vegetables {{U}}fluctuates{{/U}} according to the weather. A. jumps B. rises C. falls D. changes

单选题An international team of research scientists has created a new kind of rice that contains Vitamin A. The researchers used genetic engineering to create the new rice. Genetic engineering is the technology of changing the genes of living things. The researchers say the rice could help millions of people who do not get enough Vitamin A in the food they eat. The findings were published in Science magazine. Vitamin A is necessary for the body's natural defense system against disease. Vitamin A is needed to help prevent skin and other tissues from drying out. It also produces a light-sensitive substance in the eyes. People who do not get enough Vitamin A cannot see well in the dark. They may develop a condition that dries the eyes. The condition can result in infections that lead to blindness. A lack of Vitamin A is a major cause of blindness among children. Health experts estimate that 124 million children around the world do not eat enough foods with Vitamin A. Vitamin A is found in fish liver oil and in the yellow part of eggs. Vegetables such as carrots and sweet potatoes contain beta carotene, a substance that the body changes into Vitamin A. Public health campaigns to provide Vitamin A to those who need it have proved costly. And they are not always effective. That has led researchers to try to create foods with the vitamin. Rice is one of the most common crops grown worldwide. However, normal rice lacks Vitamin A. Researchers at a laboratory in Switzerland found a way to change the genetic material of rice. They added three genes to the rice. The genes produce beta carotene, the chemical that our bodies change into Vitamin A. The new rice has a golden yellow color. The researchers say 200 grams of the rice have enough beta carotene to provide the necessary amount of Vitamin A. Biologist Mary Lou Guerinot of Dartmouth College wrote a commentary published with the report in science magazine. She said the rice is an excellent example of the good things that can be done with genetic engineering. However, critics of genetic engineering argue that changing plant genes could increase risks to human health or the environment.

单选题From my standpoint, you know, this thing is just ridiculous. A. position B. point of view C. knowledge D. opinion

单选题If headaches only occur at night, lack of fresh air is often the cause.

单选题Have you talked to her lately?A. lastlyB. shortlyC. recentlyD. immediately

单选题The revelation of his past led to his resignation.

单选题The eternal motion of the stars fascinated him.

单选题The committee was asked to Urender/U a report on the housing situation.