在职申硕英语考试

【单选题】American culture has not been immune to cultural influences from outside. The idea of democracy came from the ancient Greeks: the Industrial Revolution started inEngland: jazz and rock music preserveAfrican rhythms--to pick a few examples. Indeed, many of the things we think of as "100 percentAmerican" came from other cultures.
Still, most of the changes inAmerican culture over the last century have come from within, as the result of inventions and discoveries.And change has been dramatiC、One hundred years ago the United States was largely a nation of farmers. Many of the things we take for granted today- a high school education, for example, or indoor plumbing—were luxuries then. The moon was a light for lovers, not a site for scientific exploration; genetic engineering (基因工程) was not even a subject for science fiction, much less for laboratory research and corporate investments. The decades following the Second World War, in particular, were characterized by spectacular scientific and technological advances, national self-confidence, optimism, and (for manyAmericans) prosperity. TheAmerican economy was the strongest in the world: more goods were produced and sold, more people were working, and the standard of living was higher than ever before. Polls (民意调查) taken in the 1950s and 1960s show that the averageAmerican was preoccupied with the questions "will I make a good living "Will I be successful " and "Will I raise successful, happy children " Success was defined in terms of maintaining a stable family and "keeping up with the Jones". MostAmericans believed that if they played by the rules--if they work hard and did what was expected, if they sacrificed their own needs to those of their family and their employer--they would be rewarded with an ever-increasing standard of living, a devoted spouse, and decent children.An expensive car, a suburban home, and children in college were tangible (可触知的) signs that hard work and self-sacrifice paid off.
TheAmerican economy has become the strongest in the world mainly because of ______
A、the spectacular scientific and technological advances
B．people’s hard working
C．learning from other cultures
D．the industrial revolution

网考网参考答案：A
网考网解析：
文章的第二段指出，发明与发现给美国文化内部带来的变化是巨大的，它使美国从一个农业国发展成为一个科学技术强国，因而美国经济是世界上最强大的，所以科学技术的伟大进步是使美国成为世界经济最强大的国家的主要原因。 document.getElementById("warp").style.display="none"; document.getElementById("content").style.display="block"; 查看试题解析出处>>