听力原文： There are two kinds of memory: short-term and long-term. Information in long-term memory can be recalled at a later time when it is needeD.The information may be kept for days and weeks. In contrast, information in short-term memory is kept for only a few seconds, usually by repeating the information over and over. The following experiment shows how short-term memory has been studieD.
Henning studied how students who are learning English as second language remember vocabulary. The subjects in his experiment were 75 college students. They represented all levels of ability in English: beginning, intermediate, advanced, and native-speaking students. To begin with, the subjects listened to a recording of a native speaker reading a paragraph in English. Following the recording, the subjects took a 15-question test to see which words they remembereD.Each question had four choices. The subjects had to circle the word they had heard in the recording. Some of the questions had four choices that sounded alikE.For example, weather, whether, wither, and wether are four words sound alikE.Some of the questions had four choices that have the same meaning. Method, way, manner, and system would be four words with the same meaning. Finally the subjects took a language proficiency test.
Henning found that students with a lower proficiency in English made more of their mistakes on words that sound alike; students with a higher proficiency made more of their mistakes on words that have the same meaning. Henning's results suggest that beginning students hold the sound of words in their short-term memory, and the advanced students hold the meaning of words in their short-term memory.
(33)
A.To study how students remember English vocabulary by short-term memory.
B.To study how students learn English vocabulary.
C.To study how to develop student's ability in English.
D.To study how long information in short-term memory is kept.

未分类题危险化学品安全技术本部分共10小题，每小题1分。每题的备选项中只有一个最符合题意。危险化学品的主要危险特性是( )。D.火灾、失效、中毒、腐蚀及污染环境

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未分类题张某委托刘某购书，并将一本存有3万元人民币的全国通兑活期存折交给刘某用于买书。刘某在途中取出该存折的3000元用于购买毒品，被公安机关当场抓获。审讯中，刘某供述存折中余下的1万元仍打算用于购买毒品。县法院对刘某判处有期徒刑15年。随后，公安机关作出行政处罚决定，关于当场查获的3000元和存折内的余款，正确的处理方法是( )。D.没收用于购买毒品的3000元，将存折内余款返还张某

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未分类题In a democratic society citizens are encouraged to form. their own opinions on candidates for public office, taxes, constitutional amendments, environmental concerns, foreign policy, and other issues. The opinions held by any population are shaped and manipulated by sever al factors: individual circumstances, the mass media, special interest groups, and opinion leaders.Wealthy people tend to think differently on social issues from poor peoplE.Factory workers probably do not share the same views as white-collar, nonunion workers. Women employed outside their homes sometimes have perspectives different from those of fulltime home makers. In these and other ways individual status shapes one's view of current events.The mass media, especially television, are powerful influences on the way people think and act. Government officials note how mail from the public tends to 'follow the headlines'. Whatever is featured in newspapers and magazines and on television attracts enough attention that people begin to inform. them and to express opinions.The mass media have also created larger audiences for government and a wider range of pubic issues than existed beforE.Prior to television and the national editions of newspapers, issues and candidates tended to remain localizeD.In Great Britain and West Germany, for ex ample, voters as local contests usually viewed elections to the national legislatures. Today's elections are seen as struggles between party leaders and programs. In the United States radio and television have been beneficial to the presidency. Since the days of Franklin D.Roosevelt and his 'fireside chats', presidents have appealed directly to a national audience over the heads of Congress to advocate their pro grams.Special groups spend vast sums annually trying to influence public opinion. Public utilities, for instance, tried to sway public opinion in favor of nuclear power plants. Opposed to them were citizens' organizations that lobbied to halt the use of nuclear power. During the 1960s the American Medical Association conducted an unsuccessful advertising campaign designed to present the passage of medicatE.Opinion leaders are usually such prominent public figures as politicians, show business personalities, and celebrity athletes.The opinions of these individuals, whether informed and intelligent or not carry weight with some segments of the population. Some individuals, such as Nobel prizewinners, are suddenly thrust into public view by the mediA.By quickly reaching a large audience, their views gain a hearing and are perhaps influential in shaping views on complex issues.The second paragraph is mainly about ______.A.the influence of gender on people's viewB.the influence of people's status on their viewC.the influence of living standard on people's viewD.the influence of different ranks on people's view

未分类题The expression 'follow the headlines' shows ______.A.people seldom have time to read newspaper articlesB.people think the headlines contain the most important informationC.people often get their opinions from newspapers or televisionD.most people look on newspapers or TV as misleading