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  3. 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

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问题     Successful innovations have driven many older technologies to extinction and have resulted in higher productivity, greater consumption of energy, increased demand for raw materials, accelerated flow of materials through the economy and increased quantities of metals and other substances in use per person. The history of industrial development is full of examples.
    In 1870, homes and mules were the prime source of power on U.S. farms. One horse or 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 mm of mind. Had they been "economists", they would have recognized that the power of steam had already been harnessed to industry and to land and ocean transport. They would have recognized further that would be only a matter of time before steam would be the prime source of power on the farm. It would have been difficult for them to avoid the conclusion that the horse and mule population would decline rapidly.
What is the author’s attitude toward changes brought on by technological innovation?
选项 A、He is excited about them.
B、He is disturbed by them.
C、He questions their usefulness.
D、He accepts them as natural.
答案D
解析 根据全文可体会出作者把技术改进看做是必然的。
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