单选题We had to learn to work with others and many of our own ideas had to be ______ for the good of the whole. A. thrown away B. compensated C. brushed aside D. neglected

单选题 Mass transportation revised the social and economic fabric of the American city in three fundamental ways. It catalyzed physical expansion, it sorted out people and land uses, and it accelerated the inherent instability of urban life. By opening vast areas of unoccupied land for residential expansion, the omnibuses, horse railways, commuter trains, and electric trolleys pulled settled regions outward two to four times more distant from city centers than they were in the premodern era. In 1850, for example, the borders of Boston lay scarcely two miles from the old business district; by the turn of the century the radius extended ten miles. Now those who would afford it could live far removed from the old city center and still commute there for work, shopping, and entertainment. The new accessibility of land around the periphery of almost every major city sparked an explosion of real estate development and fueled what we now know as urban sprawl. Between 1890 and 1920, for example, some 25,000 new residential lots were recorded within the borders of Chicago, most of them located in outlying areas. Over the same period, another 550,000 were plotted the city limits but within the metropolitan area. Anxious to take advantage of the possibilities of commuting, real estate developers added 800,000 potential building sites to the Chicago region in just thirty years—lots that could have housed five to six million people. Of course, many were never occupied; there was always a huge surplus of subdivided, but vacant, land around Chicago and other cities. These excesses underscore a feature of residential expansion related to the growth of mass transportation, urban sprawl was essentially unplanned. It was carried out by thousands of small investors who paid little heed to coordinated land use or to future land users. Those who purchased and prepared land for residential purposes, particularly land near or outside city borders where transit lines and middle-class inhabitants were anticipated did so to create demand as much as to respond to it. Chicago is a prime example of this process. Real estate subdivision there proceeded much faster than population growth.

单选题To prevent a repetition of this dreadful occurrence, we must discover the element in the food that was served.

单选题In architecture (建筑学), a vault (拱顶) is a proof or ceiling in the ______ of an arch.

单选题David and William Horsely ______.

单选题What does the last sentence of paragraph one imply?

单选题此题为音频题

单选题 Which of the following words can NOT be used to complete 'We've seen the film ______'?

单选题Take the medicine now. I believe it will______your pain.

单选题Most patients think that being told the truth of their illness may ______.

单选题These devices will enable us to take better care of our families ________they may be.

单选题The United States was trying hard to smoke the enemy out of the holes in the target country.

单选题You ______ get up and let that old lady have your seat. That's the decent thing to do, don't you think so?

单选题I weigh 120 pounds and you weigh 120 pounds. We are ______ weight.

单选题Had he not been so busy taking the diamonds, he ______ the blow.

单选题The samples ______ in quality but were generally acceptable.

单选题Waiter: Good afternoon. Are you ready to order? Guest A: ______. Betty, what will you have? Guest B: I think I'll start off with a cup of soup. What kind of soup do you have today?

单选题To some extent, our intelligence is given to us at birth, and no amount of special education can make a genius out of a child born with low intelligence. On the other hand, a child who lives in a boring environment will develop his intelligence less than one who lives in 27 and varied surroundings. Thus the limits of a person's intelligence are 28 at birth, but whether or not he reaches those limits will depend on his environment. This view, now held by most experts, can be 29 in a number of ways. It is easy to show that intelligence is to some extent something we are born with. The closer the blood relationship between two people, the closer they are likely to be in 30 . Thus if we take two unrelated people at random (随意) from the population, it is likely that their degrees of intelligence will be 31 different. Relations, on the other hand, like brothers and sisters, parents and children, usually have similar intelligence, and this clearly suggests that intelligence 32 on birth. Imagine now that we take two 33 twins and put them in different environments. We might send one, for example, to a university and the other to a factory where the work is boring. We would soon find differences in intelligence 34 and this indicates that environment as well as birth plays a part. This 35 is also suggested by the fact that people who live in close 36 with each other, but who are not relations at all, are likely to have the similar degree of intelligence. A. development B. slightly C supported D. depends E. contact F. lively G. focuses H. conclusion I. examined J. rich K. ielligence L. fixed M. complely N. identical O. distance