从各国产业政策的实施经验来看,产业政策总体变化历程可归纳为()。
A. 干预型一预测型一指导型
B. 干预型一指导型一预测型
C. 指导型一干预型一预测型
D. 预测型一指导型一干预型
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工业园区指标主要用于定量评价和描述园区内循环经济的发展状况,为工业园区发展循环经济提供指导。根据下表计算的某工业园区第T年工业固体废物排放降低率是()。
A. 0.5
B. 0.667
C. 0.875
D. 0.909
罗斯托的经济增长阶段理论认为,一国经济从不发达到发达的过渡可以用六个阶段来说明。其中,核心阶段是“起飞”阶段,被称为一个国家经济从不发达转向发达的转折点,相当于一国工业化的初期,虽然只有短短20—30年,但在此阶段,生产性经济活动的规模大大扩张,工业化开始,基本经济结构和生产方式发生剧烈变革,经济增长跃上一个台阶。关于罗斯托经济“起飞”的条件,下列说法错误的是()。
A. 投资率大幅度提高
B. 一个或多个重要制造业部门持续高速增长,成为经济发展的主导部门
C. 存在一个使高增长具有连续性的政治、社会和制度体系
D. 货币供给持续增长
《工程建设重大事故报告和调查程序规定》规定,工程重大事故发生后,事故发生单位应当在()小时内写出书面报告,按程序和部门逐级上报。
A. 5
B. 7
C. 14
D. 24
In 1870, horses and mules were the prime source 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 turn 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.
Which of the following is NOT mentioned by the author as a consequence of new technological developments?
A. Older technologies die away.
B. The quality of life is improved.
C. Overall productivity increases.
D. More raw materials become necessary.