题目内容

The purpose of the economists research at the University of Iowa is to

A. predict the outcome of American presidential election.
B. predict the sales result of best-sellers.
C. predict future events.
D. predict diseases like influenza.

查看答案

搜索结果不匹配？点我反馈

更多问题

According to Gogolla and her colleagues, fearful memories______.

A. only appear in the amygdala
B. tend to form. at a very early age
C. look like a fishing net in the brain
D. influence the growth of young mice

There is a difference between science and technology. Science is a method of answering【B1】questions; technology is a method of solving practical problems. Science has to do with discovering the facts and relationships between【B2】phenomena in nature and with establishing theories that【B3】to organize these facts and relationships; technology has to do with tools, techniques, and【B4】for applying the findings of science. Another【B5】between science and technology has to do with the progress in each. Progress in science【B6】the human factor. Scientists, who seek to understand the universe and know the truth within the highest degree of【B7】and certainty, cannot【B8】their own or other peoples likes or dislikes or to popular ideas about the fitness of things. What scientists discover may shock or【B9】people—as did Darwins theory of evolution. But even an unpleasant truth is【B10】than likely to be useful; besides, we have the choice of refusing to believe it! But【B11】so with technology; we do not have the choice of refusing to hear the sound produced by a supersonic aircraft flying overhead; we cannot refuse to breathe polluted air. 【B12】science, progress in technology must be measured【B13】the human factor. The purpose of technology is to serve people—people【B14】not merely some people; and future generations, not merely those who presently wish to【B15】advantage for themselves. We are all familiar with the【B16】use of technology. Many people blame technology itself【B17】widespread pollution, resource depletion(枯竭)and even social decay in general—so much【B18】the promise of technology is "【B19】". That promise is a cleaner and healthier world. If wise applications of science and technology do not【B20】a better world, what else will？
【B1】

A. abstract
B. theoretical
C. profound
D. concrete

二维条码通常分为以下二种类型，行排式二维条码和()。

空气中CO2气渗透到混凝土内，与其碱性物质起化学反应后生成碳酸盐和水，使混凝土碱度降低的过程称为()，又称作()。其化学反应为：()。