单选题He's like a ______ child; he likes to get his own way.

单选题The music aroused an______feeling of homesickness in him.

单选题In winter drivers have trouble stopping their cars from ______ on icy roads. A. skating B. skidding C. sliding D. slipping

单选题After practicing as a surgeon for several years, Dr. Giroux decided to apply for membership in the American College of Surgeons(美国外科医生学会)，a highly selective and distinguished(著名的) professional organization. As part of the application procedure(手续),Dr. Ginoux was asked to prepare a list of all the operations performed in the previous seven years. Slowly, as she worked on the long list, she began to feel uncertain. She began to question some of her decisions. Had she used the best technique in that case? Maybe, in this case, she should have given one more test before operating? On the other hand, maybe she should have... Would the doctors on the selection committee understand that, as the only trained surgeon in the area, she usually could not get advice from others and therefore, had to rely completely on her own judgment? For the first time, Dr. Cinoux felt lonely and isolated. The longer Dr. Ginoux worked on the application forms, the more depressed she became. As hope faded, she wondered if a "country doctor" had a realistic chance of being accepted by the American College of Surgeons.

单选题She s going to night school________ she can learn computer programming

单选题The three hours I spent in the school library ( ) my old passion for reading.

单选题When Tom insulted the referee, he _____ by ordering him off the field. A. replied B. retorted C. resolved D. responded

单选题It can be inferred from the passage that under the policy of an ever-normal granary ______.

单选题Between 1975 and 1996, the number of overseas visitors expanded______27% on average each year.

单选题Miss Liu doesn't mind______your homework as long as it is done by yourself.

单选题One effect of using a word processor may be that the ongoing revision of a text ______.

单选题"What did the teacher say to you just now? " "She asked me______. "

单选题 Though it was late in the night, ______ he continued to work vigorously.

单选题 We can begin our discussion of 'population as a global issue' with what most persons mean when they discuss 'the population problem': too many people on earth and a too rapid increase in the number added each year. The facts are not in dispute. It was quite right to employ the analogy that likened demographic (人口统计学的) growth to 'a long, thin power fuse that bums steadily and haltingly until it finally reaches the charge, and explodes'. To understand the current situation, which is characterized by rapid increases in population, it is necessary to understand the history of population trends. Rapid growth is a comparatively recent phenomenon. Looking back at the 8, 000 years of demographic history, we find that populations have been virtually stable or growing very slightly for most of human history. For most of our ancestors, life was hard, often nasty, and very short. There was high fertility in most places, but this was usually balanced by high mortality. For most of human history, it was seldom the case that one in ten persons would live past forty, where infancy and childhood were especially risky periods. Often, societies were in clear danger of extinction because death rates could exceed their birth rates. Thus, the population problem throughout most of history was how to prevent extinction of the human race. This pattern is important to know. Not only does it put the current problems of demographic growth into a historical perspective, but it suggests that the cause of rapid increase in population in recent years is not a sudden enthusiasm for more children, but an improvement in the conditions that traditionally have caused high mortality. Demographic history can be divided into two major periods: a time of long, slow growth which extended from about 8000 B. C. till approximately 1650 A. D. and a period of rapid, dramatic growth since 1650. In the first period of some 9, 600 years, the population increased from some 8 million to 500 million in 1650. Between 1650 and the present, the population has increased from 500 million to more than 4 billion. And it is estimated that by the year 2020 there will be 8 billion people throughout the world. One way to appreciate this dramatic difference in such abstract numbers is to reduce the time frame to something that is more manageable. Between 8000 B. C. and 1650, an average of only 50, 000 persons was being added annually to the world's population each year. At present, this number is added every six hours. The increase is about 80, 000, 000 persons annually.

单选题"But the doctor can't use just anyone's blood. The donor's blood has to be of a type that won't be destroyed by your blood." This statement means that______.

单选题The Saturday Evening Post became symbolic of the reading fare of middle-class America. In 1897 Curtis began to revive （重振） the Post on the proposition that a mans chief interest in life is the fi

单选题We find it extremely difficult to ______ the meaning of what he has just said. A. get into B. get over C. get across D. get at

单选题It is no use ________ to George as he is a very stubborn person.

单选题Will it rain tomorrow? I hope ______. A. no B. yes C. not D. will