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Research that went into developing the highly specialized technology for spa

游客2023-07-04  74
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] With what topic is Para. 4 mainly concerned?
选项 A、The importance of management techniques.
B、The complexity of hospital design.
C、Uses of computers in industry.
D、Applications of the systems approach.
答案 D
解析 主旨题。第四段主要讲一种叫做系统方法的管理技术的应用。本段第二句讲到“this technique brings…to assure that…”即讲到科技投入应用的目的；本段第三句讲到“It has been applied to a vatiety ofsituations unrelated to space exploration．”，即讲到应用的情景；本段最后一句讲到“Among them are cancer research…．and transportation．”即在讲有应用的范围。故综合来看，第四段主要讲“系统方法的应用”。
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