单选题We can infer that the author of this passage ______.

单选题In almost all chemical-process plants, heat is______by burning of fossil fuels coal, oil, or natural gas. A. transformed B. conducted C. transferred D. generated

单选题Upton Sinclair, an American writer of the 20th century, showed his ______ genius for recreating social history in his novels.

单选题______ of the twins was arrested, because I saw both at a party last night. A. None B. Both C. Neither D. All

单选题 The question of whether war is inevitable is one which has concerned many of the world's great writers. Before considering this question, it will be useful to introduce some related concepts. Conflict, defined as opposition among social entities (实体) directed against one another, is distinguished from competition, defined as opposition among social entities independently striving for something which is in inadequate supply. Competitors may not be aware of one another, while the parties to a conflict are. Conflict and competition are both categories of opposition, which has been defined as a process by which soical entities function in the disservice of one another. Opposition is thus contrasted with cooperation, the process by which social entities function in the disservice of one another. These definitions are necessary because it is important to emphasize that competition between individuals or groups is inevitable in a world of limited resources, but conflict is not. Conflict, nevertheless, is very likely to occur, and is probably an essential and desirable element of human societies. Many authors have argued for the inevitability of war from the premise that in the struggle for existence among animal species, only the fittest survive. In general, however, this struggle in nature is competition, not conflict. Social animals, such as monkeys and cattle, fight to win or maintain leadership of the group. The struggle for existence occurs not in such fights, but in the competition for limited feeding areas and for the occupancy of areas free from meat eating animals. Those who fail in this competition starve to death or become victims to other species. This struggle for existence does not resemble human war, but rather the competition of individuals for jobs, markets, and materials. The essence of the struggle is the competition for the necessities of life that are insufficient to satisfy all. Among nations there is competition in developing resources, trades, skills, and a satisfactory way of life. The successful nations grow and prosper, the unsuccessful decline. While it is true that this competition may include efforts to expand territory at the expense of others, and thus lead to conflict, it cannot be said that, war-like conflict among nations is inevitable, although competition is.

单选题Export of handicraft products is the mainstay of the county's economy.

单选题The waltz and the tango seem to be out of fashion today. Things like the twist and jerk seem to be ______ young people are really interested in.

单选题Speaker A: It's been lovely seeing you again, Bill. You and Mandy have to come over and see the baby sometime.Speaker B: ______ A. Congratulations. How old is your baby? B. It's lovely to see you again, George. C. Yeah, Mandy would love that. D. All right. Let me see you off downstairs.

单选题Mary, accompanied by her brothers, ______ warmly welcomed by the audience.

单选题Some futurologists have assumed that the vast upsurge of women in the workforce may portend a rejection of marriage. Many women, according to this hypothesis, would rather work than marry. The converse of this concern is that the prospects of becoming a multi-paycheck household could encourage marriage. In the past, only the earnings and financial prospects of the man counted in the marriage decision. Now, however, the earning ability of a woman can make her more attractive as a marriage partner. Data show that economic downturns tend to postpone marriage because the parties cannot afford to establish a family or are concerned about rainy days ahead. As the economy rebounds, the number of marriages also rises. Coincident with the increase in women working outside the home is the increase in divorce rates. Yet, it may be wrong to jump to any simple cause-and-effect conclusions. The impact of a wife"s work on divorce is no less cloudy than its impact on marriage decisions. The realization that she can be a good provider may increase the chances that a working wife will choose divorce over an unsatisfactory marriage. But the reverse is equally plausible. Tensions grounded in financial problems often play a key role in ending a marriage. Given high unemployment, inflationary problems, and slow growth in real earnings, a working wife can increase household income and relieve some of these pressing financial burdens. By raising a family"s standard of living, a working wife may strengthen her family"s financial and emotional stability. Psychological factors also should be considered. For example, a wife blocked from a career outside the home may feel caged in the house. She may view her only choice as seeking a divorce. On the other hand, if she can find fulfillment through work outside the home, work and marriage can go together to create a stronger and more stable union. Also, a major part of women"s inequality in marriage has been due to the fact that, in most cases, men have remained the main breadwinners. With higher earning capacity and status occupations outside of the home comes the capacity to exercise power within the family. A working wife may rob a husband of being the master of the house. Depending upon how the couple reacts to these new conditions, it could create a stronger equal partnership or it could create new insecurities.

单选题According to the author, who of the following would be labeled as intolerant?

单选题 When a man knows that he will be put into prison if he uses a potentially deadly object to rob or do harm to another person, he will think twice about it.

单选题In the view of the author, man' s unity is dialectic because of its ______.

单选题I didn’t know the answer, ______.

单选题_______ in a recent science competition, the three students were awarded scholarships totaling $ 21,000.

单选题Mobile phones are proved to ______ with flight instruments and have a negative effect on flight safety.

单选题SpeakerA: Mind if I call you Albert? Speaker B:______

单选题Try this camera, you’ll find it can be ___________ to take pictures in cloudy conditions.