The U.S. will come to lose its leading place in technology probably because

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问题 The U.S. will come to lose its leading place in technology probably because
  
The United States is on the verge of losing its leading place in the world’s technology. So says more than one study in recent years. The main reason for this decline is the parallel decline in the number of U.S. scientists and engineers. Since 1976, employment of scientists and engineers has gone up 85 percent. This trend is expected to continue. However, the trend shows that the number of 22-year-olds—the near term source of future PhDs—is declining. Further adding to the problem is the increased competition for these candidates from other fields: law, medicine, business, etc. While the number of U.S. PhDs in science and engineering declines, the award of PhDs to foreign nationals is increasing rapidly. Our inability to motivate students to pursue science and engineering careers at the graduate level is compounded because of the intense demand industry has for bright Bachelor’s and Master’s degree holders. Too often, promising PhD candidates, confronting the cost and financial sacrifice of pursuing their education, find the attraction of industry irresistible.

选项 A、technology.
B、foreign nationals.
C、such fields as law.
D、postgraduates.

答案C

解析 细节题。文中提到工科博士减少的原因之一是报考博士的考生受到来自法律,医学和商业方面的竞争,故C为正确答案。B具有强干扰性,但文中只提到越来越多的博士学位颁发给外国人,但并未说对本国的科技领域构成竞争,故应排除。
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