单选题This text is too difficult to comprehend.

单选题Mark proved to be a very competent manager.A. efficientB. successfulC. competitiveD. capable

单选题{{B}}第三篇{{/B}} {{B}}First Aid{{/B}} First aid is emergency care for a victim of sudden illness or injury until more skillful medical treatment is available. It may save a life or improve certain vital signs including pulse, temperature, a clear airway (气道), and breathing. In minor emergencies, first aid may prevent a victim's condition from turning worse and provide relief from pain. First aid must be administered as quickly as possible. In the case of the critically injured, a few minutes can make the difference between complete recovery and loss of life. First-aid measures depend upon a victim's needs and the provider's level of knowledge and skill. Knowing what not to do in an emergency is as important as knowing what to do. Improperly moving a person with a neck injury, for example, can lead to permanent spinal (脊柱的) injury and paralysis (瘫痪). Despite the variety of injuries possible, several principles of first aid apply to all emergencies. The first step is to call for professional medical help. The victim, if conscious, should be reassured that medical aid has been requested, and asked for permission to provide any first aid. Next, assess the scene, asking other people or the injured person's family or friends about details of the injury or illness, any care that may have already been given, and preexisting conditions such as diabetes (糖尿病) or heart trouble. The victim should be checked for a medical bracelet (手镯) or card that describes special medical conditions. Unless the accident scene becomes unsafe or the victim may suffer further injury, do not move the victim. First aid requires rapid assessment of victims to determine whether life-threatening conditions exist. One method for evaluating a victim's condition is known by the acronym (道字母写语) ABC, which stands for: A - Airway: is it open and clear? B - Breathing: is the person breathing? Look, listen, and feel for breathing. C - Circulation: is there a pulse? Is the person bleeding externally? Check skin color and temperature for additional indications of circulation problems.

单选题Have you talked to her lately ?

单选题He {{U}}was obsessed with{{/U}} American horror movies.

单选题Single-parent Kids Do Best Single mums are better at raising their kids than two parents — at least in the bird world. Mother zebra finches have to work harder and raise fewer chicks on their own, but they also produce more attractive sons who are more likely to get a mate. The finding shows that family conflict is as important an evolutionary driving force as ecological factors such as hunting and food supply. With two parents around, there's always a conflict of interests, which can have a detrimental effect on the quality of the offspring. In evolutionary terms, the best strategy for any parent in the animal world is to find someone else to care for their offspring, so they can concentrate on breeding again. So it's normal for parents to try to pass the buck to each other. But Ian Hartley from the University of Lancaster and his team wondered how families solve this conflict, and how the conflict itself affects the offspring. To find out, they measured how much effort zebra finch parents put into raising their babies. They compared single females with pairs, by monitoring the amount of food each parent collected, and removing or adding chicks so that each pair of birds was raising four chicks, and each single mum had two — supposedly the same amount of work. But single mums, they found, put in about 25 per cent more effort than females rearing with their mate. To avoid being exploited, mothers with a partner hold back from working too hard if the father is being lazy, and it's the chicks that pay the price. "The offspring suffer some of the cost of this conflict. " says Hartley. The cost does not show in any obvious decrease in size or weight, but in how attractive they are to the opposite sex. When the chicks were mature, the researchers tested the "fitness" of the male offspring by offering females their choice of partner. Those males reared by single mums were chosen more often than those from two-parent families. Sexual conflict has long been thought to affect the quality of care given to offspring, says zoologist Rebecca Kilner at Cambridge University, who works on conflict of parents in birds. "But the experimental evidence is not great. The breakthrough here is showing it empirically. " More surprising, says Kilner, is Hartley's statement that conflict may be a strong influence on the evolution of behaviour, clutch size and even appearance. "People have not really made that link. " says Hartley. A female's reproductive strategy is usually thought to be affected by hunting and food supply. Kilner says conflict of parents should now be taken into account as well.

单选题You look smart in the new suit.

单选题According to paragraphs 1 and 2, which of the following statements about Donald is NOT true?

单选题According to Dr. Pagel, the academic performance of a student will be affected

单选题Pure feldspar is a colorless, transparent mineral, but impurities commonly make it opaque and colorful.

单选题From my {{U}}standpoint{{/U}}, this thing is just ridiculous

单选题Cultural Code Every culture attempts to create a "universe of discourse" for its members, a way in which people can interpret their experience and convey it to one another. Without a common system of codifying sensations, life would be absurd and all efforts to share meanings doomed to failure. This universe of discourse—one of the most precious of all cultural legacies—is transmitted to each generation in part consciously and in part unconsciously. Parents and teachers give explicit instruction in it by praising or criticizing certain ways of dressing, of thinking, of gesturing, of responding to the acts of others. But the most significant aspects of any cultural code may be conveyed implicitly, not by rule or lesson but through modeling behavior. The child is surrounded by others who, through the mere consistency of their actions as males and females, mothers and fathers, salesclerks and policemen, display what is appropriate behavior. Thus the grammar of any culture is sent and received largely unconsciously, making one's own cultural assumptions and biases difficult to recognize. They seem so obviously right that they require no explanation. In The Open and Closed Mind, Milton Rokeach poses the problem of cultural understanding in its simplest form, but one that can readily demonstrate the complication of communication between cultures. It is called the "Denny Doodlebug Problem". Readers are given all the rules that govern this culture: Denny is an animal that always faces North, and can move only by jumping; he can jump large distances or small distances, but can change direction only after jumping four times I any direction; he can jump North, South, East or West, but not diagonally. Upon concluding a jump his master places some food three feet directly West of him. Surveying the situation, Denny concludes he must jump four times to reach the food. No more or less. And he is right. All the reader has to do is to explain the circumstances that make his conclusion correct. The large majority of people who attempt this problem fail to solve it, despite the fact that they are given all the rules that control behavior in this culture. If there is difficulty in getting inside the simplistic world of Denny Doodlebug—where the cultural code has already been broken and handed to us—imagine the complexity of comprehending behavior in societies whose codes have to yet been deciphered. And where even those who obey these codes are only vaguely aware and can rarely describe the underlying sources of their own actions.

单选题You don't need to carry large amounts of cash; actually all financial businesses will be conducted by computers. A. transmissions B. transitions C. transactions D. transportation

单选题He flew into a fury when I said I couldn't help him any more.A. angerB. poolC. boatD. crowd

单选题{{B}}第二篇{{/B}} {{B}} Obesity (肥胖): the Scourge (祸害) of the Western World{{/B}} Obesity is rapidly becoming a new scourge of the western world, delegates agreed at the 11th European Conference on the issue in Vienna Wednesday to Saturday. According to statements before the opening of the conference- of 2,000 specialists from more than 50 countries- 1.2 billion people worldwide are overweight, and 250 million are obese. Professor Bernhard Ludvik of Vienna General Hospital said, "Obesity is a chronic illness. In Germany, 20 per cent of the people are already affected, but in Japan only one per cent." But he said that there was hope for sufferers thanks to the new scientific discoveries and medication. Professor Friedrich Hopichler of Salzberg said, "We are living in the new age (but) with the metabolism of a stone-age man." "I have just been to the United States. It is really terrible. A pizza shop is springing up on every corner. We have been overrun by fast food and Coca-Cola." Many of the experts stressed that obesity was a potential killer. Hopichler said: "Eighty percent of all diabetics are obese, also fifty per cent of all patients with high blood pressure and fifty per cent with adipose tissue complaints." "Ten per cent more weight means thirteen per cent more risk of heart disease. Reducing one's weight by ten per cent leads to thirteen per cent lower blood pressure." Another expert Hermann Toplak said that the state health services should improve their financing of preventive programs. "Though the health insurance pays for surgery (such as reducing the size of the stomach) when the body-mass index is more than 40. That is equivalent to a weight of 116 kilograms for a height of 1.70 meters. One should start earlier." Ludvik said that prevention should begin in school. "Child obesity (fat deposits) correlates with the time which children spend in front of TV sets." The consequences were only apparent later on. No more than fifteen per cent of obese people lived to the average life expectancy for their population group. scourge n. 天灾; 祸害 obesity n. 肥胖症 overrun vt. 侵扰;蹂躏 obese adj. 肥胖的 diabetic n. 糖尿病患者; adj.糖尿病的 medication n. 药物疗 adipose adj. 脂肪有;肥胖的 metabolism n. 新陈代谢

单选题They have given up the hope to save their friend from drowning.

单选题He paused for a moment, then continued speaking.A. satB. stoodC. shookD. stopped

单选题Voyage to Antarctica Antarctica is not an easy place to get to, but increasing numbers of people visit Antarctica every year. People join the organized voyage guided by experts that are a mixture of seasoned seafarers, and ice or wildlife experts. Passenger ships of many different sizes sail to Antarctica. The choice of ship can make a big difference to your journey and experience. First of all, Antarctic voyages are not like the other, more well-known, trips to warmer climates that have discos and other types of entertainment. The larger the ship, however, the more likely it will be that entertainment is provided. What you will find on the voyage are a number of experienced cruise guides working on the ship. They will tell you about various aspects of Antarctic history and natural history. Rules made by the International Association of Antarctic Tour Operators (IAATO) cover such things as the size of the cruise ship allowed to enter Antarctic waters and also personal conduct at landing sites in Antarctica. This is a voluntary organization and it is well respected. You should always make sure that the ship / tour company you use to go to Antarctica is a member of the IAATO. One of the main rules that will affect your visit is that only 100 passengers at any one time may be landed in any one place in Antarctica. If you are on a small ship of up to 100 passengers, then you have the chance to go ashore every time. If the ship is larger, then there will be less opportunity for landings. Surprisingly, though, there are a number of people who go to Antarctica and never leave the ship: the choice is obviously yours.

单选题A university is an educational institution which awards degrees and performs research.

单选题I am heartily {{U}}grateful{{/U}} to your help.