Enter the information age. Information is the raw material for many of the b

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问题 Enter the information age. Information is the raw material for many of the business activities【C1】______this new era, just as iron and steel were the basic commodities in the【C2】______of the industrial age.
The world’s knowledge is said to be doubling every eight years. This knowledge【C3】______is stimulating economic progress. The need to collect, analyze, and communicate great【C4】______of information is producing new products and services, creating jobs, and【C5】______career opportunities.
The information age is【C6】______considered to be a phenomenon of the service sector of the economy,【C7】______than a product of heavy industry. Certainly, rocketing information technologies are creating new capabilities【C8】______knowledge-based service spheres.【C9】______changes just as dramatic are【C10】______industry, giving people the【C11】______to do challenging work in exciting new ways.
Manufacturing is full【C12】______in the information age. From design to production, the manufacturing【C13】______has long been information-intensive. It always has required exacting communication to describe what goes into products and how to make them. Now, computer technology is giving factory managers new【C14】______to gather all of this information and use it to control production.
Telecommunications are producing error-free communication between the design office and the factory. Computer-aided design is enabling engineers to【C15】______product performances and manufacturing process on video displays, before resources are committed to build and test prototypes. Techniques like these are bringing【C16】______new advances in manufacturing productivity. Just as coal fueled the【C17】______to an industrial society, so microelectronics is powering the【C18】______of the information age. Microelectronic information management tools are【C19】______U.S. industrial capabilities, which remains【C20】______to America’s economic wellbeing and national security. [br] 【C20】

选项 A、fatal
B、mortal
C、vital
D、rational

答案 C

解析语义衔接题。结合语境，前面提到微电子信息管理工具提升美国工业的能力，这对美国经济的健康和国家安全来说，很显然是十分重要的，故答案为[C]vital。vital to意为“对…很重要”。[A]fatal与to搭配使用表示不好的、灾难性的影响；[B]mortal“致命的”；[D]rational“理性的”。

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