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Successful innovations have driven many older technologies to extinction and have resulted in higher productivity, greater consu
Successful innovations have driven many older technologies to extinction and have resulted in higher productivity, greater consu
admin
2016-03-05
54
问题
Successful innovations have driven many older technologies to extinction and have resulted in higher productivity, greater consumption of energy and increased demand for raw materials, accelerated flow of materials through the economy and increased quantities of metals and other substances in use each person. The history of industrial development abounds with examples.
In 1870, horses and mules were prime sources of power on U. S. farms. One horse or mule was required to support four human beings—a ratio that remained almost constant for many decades. At that time, had a national commission been asked to forecast the horse and mule population for 1970, its answer probably would have depended on whether its consultants were of an economic or technological turn of mind. Had they been "economists" , they would probably have projected the 1970 horse or mule population to be more than 50 million. Had they been "technologists" , they would have recognized that the power of steam had already been used in industry and land and ocean transport. They would have recognized further that it would be the prime source of power on farm. It would have been difficult for them to avoid the conclusion that the horse and mule population would decline rapidly.
Which of the following is not mentioned by the author as a consequence of new technological developments?
选项
A、Older technologies dies away.
B、The quality of life is improved.
C、Overall productivity increases.
D、More raw materials become necessary.
答案
B
解析
答案在第一段。根据第一段Successful innovations have driven many oldertechnologies to extinction and have resulted in higher productivity,greater consumption of energyand increased demand for raw materials…可知A、C、D都是科技进步的结果,故B是正确答案。
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英语题库普高专升本分类
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英语
普高专升本
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