单选题The word "there" in the first line of the last paragraph refers to ______.

单选题 Scientists have invented a 3D scan technology to read the otherwise illegible wood-carved stone, a method that may apply to other areas such as medicine.

单选题Even researchers, for example, ______ applying the concept of "cohesion" may not produce the most cost-effective science.

单选题As welfare reform has ______ millions of single mothers like Patino into the workforce since 1996, questions about its effects on families have loomed large. A. nudged B. propelled C. divested D. bumped

单选题In which of the following cases is it useful to consider the relationship between the length of an oscillating object and its natural period?

单选题Social scientists believe that societies with a_______ of young men without hope of marriage suffer from instability, violence and surges in crime.

单选题The last guests to reach the hotel______ at 12 o' clock at night. A. checked out B. checked up C. checked in D. checked on

单选题 Passage 4 In recent years, many Americans of both sexes and various ages have become interested in improving their bodies. They have become devoted to physical fitness. The need to exercise has almost become compulsive with many persons who have a strong desire to be more physically fit. By nature, Americans are enthusiastic and energetic about their hobbies and pastimes. They apply this enthusiasm, and energy to jogging/running. As a result, there are running clubs to join and many books and magazines to read about running. The desire to be physically fit is explained by a "passion" for good health. The high rate of heart attacks in the 1960s caused an increase on the part of the public in improving the human body. Middle-aged men especially suffer from heart attacks. Thus, they are one group strongly interested in more physical exercise. In fact, many doctors encourage their patients to become more physically active, especially those who have sedentary jobs. It is interesting to note that the rate of heart attacks began to decrease in the 1970s and it is still decreasing. Physical fitness currently enjoys a favored role in the United States. It is a new "love" that many Americans have cherished. Will it last long? Only time will tell or until another "new passion" comes along.

单选题{{B}}Passage Three{{/B}} Traditionally, the study of history has had fixed boundaries and focal points—perious, countries, dramatic events, and great leaders. It has also had clear and firm notions of scholarly procedure: how one inquires into a historical problem, how one presents and documents one's findings, what constitutes admissible and adequate proof. Anyone who has followed recent historical literature, can testify to the revolution that is taking place in historical studies. The currently fashionable subjetcs come directly from the sociology catalog: childhood, work, leisure. The new subjects are accompanied by new methods. Where history once was primarily narrative, it is now entirely analytic. The old questions "What happened?" and "How did it happen?" have given way to the question "Why did it happen?" Prominent among the methods used to answer the question "Why" is psychoanalysis, and its use has given rise to psychohistory. Psychohistory does not merely use psychological explanations in historical context. Historians have always used such explanations when they were appropriate and when there was sufficient evidence for them. But this practical use of psychology is not what psychohistorians intend. They are committed not just to psychology in general, but to Frendian psychoanalysis. This commitment precludes a commitment history as historians have always understood it. Psychohistory derives its "facts" not from history, the detailed records of events and their consequences, but from psychoanalysis of the individuals who made history, and deduces its theories not from this or that instance in their lives, but from a view of human nature that transcends history. It denies the basic criterion of historical evidence that evidence be publicly accessible to, and therefore assessable by, all historians. And it violates the basic tenet of historical method: that historians be alert to the negative instances that would refute their rightness of their theses. Psychohisotrians, convinced of the absolute rightness of their own theories, are also convinced that theirs is the "deepest" explanation of any event, that other explanations fall short of the truth. Psychohistory is not content to violate the discipline of history (in the sense of the proper mode of studying and writing about the past); ii also violates the past itself. It denies to the past an integrity and will of its own, in which people acted out of a variety of motives and in which events had a multiplicity of causes and effects. It imposes upon the past the same determinism that it imposes upon the present, thus robbing people and events of their individuality and of their complexity, Instead of respecting the particularity of the past, it assimilates all events, past and present, into a single deterministic schema that is presumed to be true at all times and in all circum stances.

单选题Carbon is a(n)______ while carbon dioxide is a compound.

单选题The majority of the observers at the conference, in contradistinction to the delegates, were opposed to ratification.

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单选题His writing is so______, obscure, and overwrought that it is difficult to make out what he is trying to say.

单选题The two delegates had an in-depth exchange of views on how to enhance their cooperation ______.

单选题The police are working on a______into suspected drug dealing in the outskirt of the city.

单选题The firm's promise to increase our pay was a reluctant______to union demands, because the union would otherwise not go back to work.

单选题A serious critic has to comprehend the particular content, unique structure, and special meaning of a work of art. And here she faces a dilemma. The critic must recognize the artistic element of uniqueness that requires subjective reaction; yet she must not be unduly prejudiced by such reactions. Her likes and dislikes are less important than what the work itself communicates, and her preferences may blind her to certain qualities of the work and thereby prevent an adequate understanding of it. Hence, it is necessary that a critic develop a sensibility informed by familiarity with the history of art and aesthetic theory. On the other hand, it is insufficient to treat the artwork solely historically, in relation to a fixed set of ideas or values. The critic's knowledge and training are, rather, a preparation of the cognitive and emotional abilities needed for all adequate personal response to an artwork's own particular qualities.

单选题But for his courage, the battle ______.

单选题Must I wait till you come back? No, you______