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部件图识读内容主要围绕各构件组合位置、组合的构造和结构方法和组合概算等。
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下面的短文有5处空白，短文后有6个句子，其中5个取自短文，请根据短文内容将其分别放回原有位置，以恢复文章原貌。 Looking to the Future When a magazine for high-school students asked its readers what life would be like in twenty years, they said : machines would be run by solar power. Buildings would rotate so they could follow the sun to take maximum advantage of its light and heat. Walls would radiate(发射电磁波，辐射) light and change color with the push of a button. Food would be replaced by pills. School would be taught by electrical impulse while we sleep. Cars would have radar. Does this sound like the year 2000 Actually (46) and the question was "what will life be like in 1987" The future is much too important to simply guess about, the way the high school students did, so experts are regularly asked to predict accurately. By carefully studying the present, skilled businessmen, scientists, and politicians are supposedly able to figure out in advance what will happen. But can they One expert on cities wrote. (47) , but would have space for farms and fields. People would travel to work in "airbuses", large all-weather helicopters carrying up to 200 passengers. When a person left the airbus station he could drive a coin-operated car equipped with radar. The radar equipment of cars would make traffic accidents "almost unheard of". Does that sound familiar If the expert had been accurate, it would, because; he was writing in 1957. His subject was "The city of 1982". If the professionals sometimes sound like high-school students, it’s probably because (48) . But economic forecasting, or predicting what the economy will do, has been around for a long time. It should be accurate, and generally it is. But there have been some big mistakes in this field, too. In early 1929, most forecasters saw an excellent future for the stock market. In October of that year, (49) , ruining thousands of investors who had put their faith in financial foreseers. One forecaster knew that predictions about the future would always be subject to significant errors. In 1957, H. J. Rand of the Rand Corporation was asked about the year 2000, "Only one thing is certain", he answered. "Children born today (50) " A. The stock market had its worst losses ever B. will have reached the age of 43 C. the article was written in 1958 D. Cities of the future would not be crowded E. The prediction of the future is generally accurate F. future study is still a new field
一个学生表的结构中包含的字段、类型及宽度有：姓名(C，8)，性别(C，2)，出生日期(D)，是否团员(L)。表中共有100条记录，则所有记录所占用的字节数为 【19】 。
下面的短文有15处空白，请根据短文内容为每处空白白确定1个最佳选项。 Unpopular Subjects Is there a place in today’s society for the study of useless subjects in our universities Just over 100 years ago Fitzgerald argued in a well-written letter to Nature that "universities must be allowed to study useless subjects-if (51) don’t, who will" He went on to use the example of Maxwell’s electrodynamics(电动力学) as one case where a "useless subject" has been transformed (转换) to a (52) subject. Nowadays this argument is again very active in many (53) Indeed one suspects that it is one of those arguments that must be fought anew (重新) by each generation. But now there is an (54) twist (歪曲，扭曲) -subjects must not only be useful, they (55) also be popular enough that students will flock (蜂拥) to do them, and even flock to (56) to do them. As universities become commercial operations, the pressure to eliminate(去除) subjects or departments that are less popular will become (57) . Perhaps this is more acutely(尖锐的) felt at the moment by physics. There has been much discussion in the press of universities that are (58) physics departments and incorporate(使合并)them with mathematics or engineering departments. Many scientists think otherwise. They see physics as a (59) science, which must be kept alive if only to provide a (60) for other sciences and engineering. It is of their great personal concern that physics teaching and research is (61) in many universities. How can it be preserved(保留，保存)in the rush towards commercial (62) A major turnaround (转变) in student popularity(讨人喜欢，流行) may have to wait (63) the industrial world discovers that it needs physicists and starts paying them well. Physics is now not only unpopular; it is also "hard". We can do more about the latter by (64) teaching in our schools and universities. We can also develop cooperative arrangements to ensure that physicists (65) their research and teaching up to date.
燕京八景是老北京著名的八处景点，产生于金代明昌间，沿用至今，地点固定未变动。( )
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