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Research that went into developing the highly specialized technology for spa
Research that went into developing the highly specialized technology for spa
游客
2023-07-04
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问题
Research that went into developing the highly specialized technology for space travel has resulted in many unexpected practical applications back on earth. Out of the engineering that produced rocket motors, liquid propellants, space suits, and other necessities of space flight came by-products that no one had anticipated. Equipment and procedures designed for astronauts and space flights have been successfully adapted for use in medicine, industry, and the home. These valuable products of space research, called spinoffs, have improved the quality of life on earth in many ways.
Some of the best-known examples of spin-offs from space research are found in hospitals and doctors’ offices. One such example is the sight switch, which was originally developed to allow astronauts to control their spacecraft without using their hands. The sight switch is now used by handicapped people to operate devices using eye movements. Another spin-off is the voice command device, which was designed to enable astronauts to steer their spacecraft by voice command. This device is now being used to help deaf people learn to speak.
Doctors have also benefited from the technology required to make miniature electronic instruments small enough and durable enough for trips into space. From this technology have come hearing aids the size of an aspirin and television camera which are small enough to be attached to a surgeon’s head to give medical students a close-up view of an operation.
One of the most valuable contributions of aerospace technology to industry is a management technique called the systems approach. With the aid of computers, this technique brings together all the elements of a complex project, including people, money and materials, to assure that everything is completed at the optimum time. It has been applied to a variety of situations unrelated to space exploration. Among them are cancer research, hospital design, city planning, crime detection, pollution control, building construction, and transportation.
The experience gained from developing NASA spacesuits was applied to the process of designing clothing for use in other professions. Firefighters now have lighter and special "fireblocking" materials that are more resistant to burning. Spacers used for cushioning in moon boots were adapted for use in athletic shoes that are designed to reduce fatigue and injury. [br] The article mainly discusses______.
选项
A、devices that enable astronauts to control their spacecraft
B、the value of the systems approach
C、practical applications of space research
D、ways of monitoring patients
答案
C
解析
主旨题。本题考全篇的主旨。重在看各段的第一句话。在第一段第一句中作者就提出了本文的中心意思,即为开发太空航行的高科技的研究却为地面上的生活带来了意想不到的实际用途。第二段第一句又讲到“一些最著名的太空研宄衍生品被广泛应用于医院和医生的办公室里”;第三段开头讲到“微型电子仪器使医生受益”;第四段讲到“管理技术,即系统方法的应用”;最后一段讲到“太空服设计为其他行业的服装设计提供了宝贵经验”,综合各段大意,可以知道本篇的主旨讲“太空研究的实际性应用”。故选C。
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