单选题Medical Journals Medical journals are publications that report medical information to physicians and other health professionals. In the past, these journals were available only in print. With the development of electronic publishing, many medical journals now have Web sites on the Internet, and some journals are published only online. A few medical journals, like the Journal of the American Medical Association , are considered general medical journals because they cover many fields of medicine. Most medical journals are specialty journals that focus on a particular area of medicine. Medical journals publish many types of articles. Research articles report the results of research studies on a range of topics varying from the basic mechanisms of diseases to clinical trials that compare outcomes of different treatments. Review articles summarize and analyze the information available on a specific topic based on a careful search of the medical literature. Because the results of individual research studies can be affected by many factors, combining results from different studies on the same topic can be helpful in reaching conclusions about the scientific evidence for preventing, diagnosing or treating a particular disease. Case conferences and ease reports may be published in medical journals to educate physicians about particular illnesses and how to treat them. Editorials in medical journals are short essays that express the views of the authors, often regarding a research or review article published in the same issue. Editorials provide a perspective on how the current article fits with other information on the same topic. Letters to the editor provide a way for readers of the medical journal to express comments, questions or criticisms about articles published in that journal.

单选题In the latter case, the Uoutcome/U can be serious indeed,

单选题Our arrangements were thrown into complete turmoil .

单选题She is slender , with delicate wrists and ankles.

单选题He spoke so quickly that it was difficult to take down what he was saying.

单选题People fishing on a lake must wait calmly so as not to scare the fish away.

单选题Voluntary learning in organized courses by mature men and women is called adult education. Such education is offered to make people able to enlarge and interpret their experience as adults. Adults may want to study something which they missed in earlier schooling, get new skills or job training, find out about new technological development, seek better self - understanding, or develop new talents and skills. Adult education is best defined asA. the education for adults to enlarge their experience.B. the education for adults who want to get new skills.C. voluntary learning in organized courses by grown - ups.D. voluntary learning by adult individuals.

单选题New England town meetings, in their most highly developed form, are assemblies of the voters.

单选题The film {{U}}originated{{/U}} from a short story.

单选题There is no reason why you shouldn't tell them beforehand that you are leaving. A. in advance B. ahead C. before long D. early

单选题How much would four pounds of tea weigh if it was taken 4,000 miles out from the surface of the earth?

单选题Charges for local telephone calls are outrageous.A. unheard ofB. unacceptableC. unbelievableD. ridiculous

单选题The good harvest lowered the price of strawberries.

单选题The trumpet was part of the opera orchestra long before it became a standard orchestral instrument.

单选题Generally, a material with a {{U}}sour{{/U}} taste, such as vinegar or lemon juice, contains an acid.

单选题They"re petitioning for better facilities for the disabled on public transport.

单选题More Than a Ride to School The National Education Association claims, "The school bus is a mirror of the community." They further add that, unfortunately, what appears on the exterior (外部) does not always reflect the reality of a chosen community. They are right, and sometimes it reflects more! Just ask Liesl Denson. Riding the school bus has been more than a ride to school for Liesl. Bruce Hardy, school bus driver for Althouse Bus Company has been Liesl's bus driver since kindergarten. Last year when Liesrs family moved to Parkesburg, knowing her bus went by her new residence, she requested to ride the same bus. This year Liesl is a senior and will enjoy her last year riding the bus. She says, "It's been a great ride so far! My bus driver is so cool and has always been a good friend and a good listener. Sometimes when you're a child adults do not think that what you have to say is important. Mr. Hardy always listens to what you have to say and makes you feel important. " Her friends Ashley Batista and Amanda Wolfe agree. Bruce Hardy has been making Octorara students feel special since 1975. This year he will celebrate 30 years working for Althouse Bus Transportation. Company President, Larry Althouse acknowledges Bruce Hardy's outstanding record. "You do not come by employees like Bruce these days; he has never missed a day of work and has a perfect driving record. Recognized in 2000 by the Pennsylvania School Bus Association for driving 350, 000 accident free miles, Hardy's reputation is made further evident through the relationships he has made with the students that ride his bus. " Althouse further added, "Althouse Bus Transportation was established 70 years ago and has been providing quality transportation ever since. My grandfather started the business with one bus. Althouse Bus Transportation is delighted to have the opportunity to bring distinctive and safe service to our local school and community and looks forward to continuing to provide quality service for many more years to come. " Three generations of business is not all the company has enjoyed. Thanks to drivers like Bruce Hardy, they have been building relationships through generations. Liesl's mother Carol also enjoys fond memories of riding Bruce Hardy's bus to the Octorara School District.

单选题A small number of firms have{{U}} ceased{{/U}} trading

单选题Only his relatives knew he had a fatal illness.

单选题阅读下面这篇短文，短文后列出了7个句子，请根据短文的内容对每个句子作出判断。如果该句提供的是正确信息，请选择A项；如果该句提供的是错误信息，请选择B项；如果该句信息文章中没有提及，请选择C项。 {{B}} Plants and Mankind{{/B}} Botany, the study of plants, occupies a peculiar position in the history of human knowledge. We don't know what our Stone Age ancestors knew about plants, but from what we can observe of preindustrial societies that still exist, a detailed learning of plants and their properties must be extremely ancient. This is logical. Plants are the basis of the food pyramid for all living things, even for other plants. They have always been enormously important to the welfare of people, not only for food, but also for clothing, weapons, tools, dyes, medicines, shelter, and many other purposes. Tribes living today in the jungle of the Amazon recognize hundreds of plants and know many properties of each. To them botany has no name and is probably not even recognized as a special branch of" knowledge" at all. Unfortunately, the more industrialized we become the farther away we move from direct contact with plants, and the less distinct our knowledge of botany grows. Yet everyone comes unconsciously on an amazing amount of botanical knowledge, and few people will fail to recognize a rose, an apple, or an orchid. When our Neolithic ancestors, living in the Middle East about 10,000 years ago, discovered that certain grasses could be harvested and their seeds planted for richer yields the next season, the first great step in a new association of plants and humans was taken. Grains were discovered and from them flowed the marvel of agriculture: cultivated crops. From then on, humans would increasingly take their living from the controlled production of a few plants, rather than getting a little here and a little there from many varieties that grew wild and the accumulated knowledge of tens of thousands of years of experience and intimacy with plants in the wild would begin to fade away.