单项选择题 Effects of Exercise on Elderly Diabetics (糖尿病人) Most older people with so-called type 2 diabetes (糖尿病人) could stop taking insulin(胰岛素) if they would do brisk (轻快的) exercise for 30 minutes just three times a week,according to new medical research results reported in a Copenhagen newspaper. Results from tests conducted on diabetics at the Copenhagen central hospital Rigshospitalet's Center for Muscle Research showed that physical exercise can boost the body's ability to make use of insulin by 30 per cent. This is equal to the effect most elderly diabetics get from their insulin medication (药物治疗) today.Researchers had a group of non-diabetic men and a group of men with type 2diabetes, all more than 60 years of age, exercise on bicycles six times a week for three months. After the three months the doctors measured how much sugar the test subjects' muscles could make use of as a measure for how well their insulin worked.Associate Professor Dr Flemming Dela of the Muscle Research Center said the tests demonstrated that the exercising diabetics had made as good use of insulin as the healthy non-diabetic persons. 'This means that the insulin works just as well for both groups. Physical exercise cannot cure people of diabetes, but it can eliminate almost all their symptoms. At the same time it can put off the point at which they have to begin taking insulin,' Dela said.Insulin is a hormone produced by the pancreas (胰腺), controlling sugar in the body and is used against diabetes.Dela said that to achieve the desired effect diabetics need only exercise to the point where they begin to sweat, but that the activity has to be maintained since it wears off after five days without sufficient exercise.Most diabetics realize that they have to watch their diet while remaining unaware of the importance of exercise, Dela added. 第 36 题 What is the effect of exercise on elderly people with type 2 diabetes?A． It can help the body make better use of insulin.B． It can worsen their symptoms.C． It can help them to eat more.D． It can cure them of the disease.

单项选择题 第一篇 First Aid 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 ofknowledge and skill. Knowing what not to do in an emergency is as important as knowingwhat 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 (首字母缩写词) 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.{Page} 第 31 题 First aid may bring about all the following results EXCEPTA． saving a victim's life.B． preventing a victim's condition from getting worse.C． helping a person avoid sudden illness or injury.D． relieving a victim from pain.

单项选择题 U．S．Blacks Hard-hit by Cancer Death rates for cancer are falling for all Americans, but black Americans are still more likely to die of cancer than whites, the American Cancer Society said Monday.In a special report on cancer and blacks, the organization said blacks are usually diagnosed with cancer later than whites, and they are more likely to die of the disease.This could be because of unequal (不平等的) access to medical care, because blacks are more likely to have other diseases as well, and perhaps because ofdifferences in the biology (生物学) of the cancer itself, the report added.'In general, black Americans have less hope of surviving five years after diagnosis than whites for all cancer sites and all stages of diagnosis,' the report said.'In describing cancer statistics for black Americans, this report recognizes that many of the differences associated with race may be caused by unfair social and economic differences and unequal access to medical care.'The cancer society said blacks should be encouraged to get check-ups (体格检查) earlier, when cancer is more treatable, and it said more research is needed to see if biological differences play a role.'The new statistics emphasize the continuing importance of wiping out these unfair social differences through public policy and education efforts,' the organization said in a statement.But it also noted a drop in cancer death rates.'Cancer death rates in both sexes for all sites combined have dropped greatly among black Americans since 1992, as have incidence rates (发生率),' said the report. 第 31 题 Black Americans are more likely to die of cancer thanA．people in other countries.B．white Americans.C．all other Americans.D．their ancestors.