单选题Molly has always been a(n) ______ child; she becomes ill easily.

单选题This is the only book ______ I have on chemistry.

单选题Although it was none of my business I asked her if the one she was Ulamenting for/U was in any way kin.

单选题Scattered around the globe are more than 100 small regions of isolated volcanic activity known to geologists as hot spots. Unlike most of the world"s volcanoes, they are not always found at the boundaries of the great drifting plates that make up the earth"s surface; on the contrary, many of them lie deep in the interior of a plate. Most of the hot spots move only slowly, and in some cases the movement of the plates past them has left trails of dead volcanoes. The hot spots and their volcanic trails are milestones that mark the passage of the plates. That the plates are moving is not beyond dispute. Africa and South America, for example, are moving away from eath other as new material is injected into the sea floor between them. The complementary coastlines and certain geological features that seem to span the ocean are reminders of where the two continents were once joined. The relative motion of the plates carrying these continents has been constructed in detail, but the motion of one plate with respect to another cannot readily be translated into motion with respect to the earth"s interior. It is not possible to determine whether both continents are moving in opposite directions or whether one continent is stationary and the other is drifting away from it. Hot spots, anchored in the deeper layers of the earth, provide the measuring instruments needed to resolve the question. From an analysis of the hot spot population it appears that the African plate is stationary and that it has not moved during the past 30 million years. The significance of hot spots is not confined to their role as a frame of reference. It now appears that they also have an important influence on the geophysical processes that propel the plates across the globe. When a continental plate come to rest over a hot spot, the material rising from deeper layer creates a broad dome. As the dome grows, it develops seed fissures (cracks); in at least a few cases the continent may break entirely along some of these fissures, so that the hot spot initiates the formation of a new ocean. Thus just as earlier theories have explained the mobility of the continents, so hot spots may explain their mutability (inconstant).

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单选题Students self-rating on "emotional health" and "physical health" reached all-lime lows. The reason may be ______.

单选题The new school building is ______ completion. A. nearlyto B. close to C. almost at D. just about at

单选题The degree of economic growth is an ______ of the level of living.

单选题It is now believed that the dramatic changes in family structure, though regrettable, are im possible to reverse.

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单选题There have been three periods in the history of post-war broadcast interviewing. The first, "the age of respect", when it was an honour to have you, the interviewee, on the programme, lasted until the middle 50s. The second, "the age of supremacy", when politicians in particular looked upon the interviewers as rivals who made them feel uncomfortable by their knowledge and rigour of questioning, came to an end at the beginning of this decade. Now we are in "the age of evasion", when most prominent interviewees have acquired the art of seeming to answer a question whilst bypassing its essential thrust. Why should this be? From the complexity of causes responsible for the present commonplace interview form, a few are worth singling out, such as the revolt against rationality and the worship of feeling in its place. To the young of the 60s, the painstaking search for understanding of a given political problem may have appeared less fruitful and satisfying than the free expression of emotion which the same problem generated. Sooner or later, broadcasting was bound to reflect this. This bias against understanding has continued. To this we must add the professional causes that have played their part. The convention of the broadcast interview had undergone little change or radical development since its rise in the 50s. When a broadcasting form ceases to develop, its practitioners tend to take it for granted and are likely to say "how" rather than ask "why". Furthermore, these partly psychological, partly professional tendencies were greatly accelerated by the huge expansion of news and current affairs output over the last 15 years. When you had many, additional hours of current affairs broadcasting, interviewing turned out to be a far cheaper convention than straight reporting, which is costly in terms of permanent reporters and time preparation. The temptation to combine an expanded news and current affairs service with a relatively small additional financial expense by making the interview happen everywhere proved overwhelming. To be fair, there are compensating virtues in interviewing, such as immediacy and authority, yet in all honesty I must say that the spread of the interviewing arrangement has led to a corresponding diminution of quality broadcasting.

单选题But like many.__, Turner is growing a little fired as Florida's busy hurricane season continues to ______ nerves and extend hardships. A. sprain B. fray C. distort D. scuffle

单选题To stop snacking while watching television, people should keep their hands busy by sewing, painting, working crossword puzzles, and so forth. Over time, watching TV becomes a cue for engaging in an activity other than snacking. What method is used in this example?

单选题Mr. Carson thought he was entitled to more assistance from the government.

单选题After reading Philip Morrison's paper on gamma-ray astronomy in 1959, a fellow physicist was Uprompted/U to ask, "Wouldn't using gamma-rays be a good way to communicate across the galaxy?"

单选题He was ______ when he became president of the corporation.

单选题{{B}}Passage Four{{/B}} From the 1960s, international terrorist crimes, such as the hijacking of passenger aircraft, political assassinations and kidnappings, and urban bombings, constituted a growing phenomenon of increasing concern, especially to Western governments. Most terrorist groups are associated either with millenarian revolutionary movements on an international scale (such as some Marxist organizations) or with nationalist movements of particular ethnic, religious, or other cultural focus. Three broad categories of terrorist crime may be distinguished, not in legal terms, but by intention. Foremost is the use of violence and the threat of violence to create public fear. This may be done by making random attacks to injure or kill anyone who happens to be in the vicinity when an attack takes place. Because such crimes deny by virtue of their being directed at innocent bystanders, the unique worth of individual, terrorism is said to be a form of crime that runs counter to all morality and so undermines the foundations of civilization. Another tactic generating fear is the abduction and assassination of heads of state and members of governments in order to make others afraid of taking positions of leadership and so to spread a sense of insecurity. Persons in responsible positions may be abducted or assassinated on the grounds that they are "representatives" of some institution or system to which their assailants are opposed. A second category of terrorist crime is actual rule by terror. It is common practice for leaders of terrorist organizations to enforce obedience and discipline by terrorizing their own members. A community whose collective interests the terrorist organization claims to serve may be terrorized so that their cooperation, loyalty, and support are ensured. Groups that come to power by this means usually continue to rule by terror. Third, crimes are committed by terrorist organizations in order to gain the means for their own support. Bank robbery, kidnapping for ransom, extortion, gambling rake-offs (profit skimming), illegal arms dealing, and drug trafficking are among the principal crimes of this nature. In the Middle East, hostages are frequently sold as capital assets by one terrorist group to another.