Since their first appearance on earth, men have gathered information and have attempted to pass useful ideas to other men. Man h

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问题     Since their first appearance on earth, men have gathered information and have attempted to pass useful ideas to other men. Man has always been interested in extending the range of his senses and the power of his mind. Through the years, he has invented many instruments to help him see better and understand more. He invented the telescope, for example, to be able to look at faraway objects. To see the very small things in the world, he developed the microscope. Radios, telephones, and telegraphs are means by which man has extended the range of his senses of hearing and speech.

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答案自从人在地球上出现以来,就着手收集信息并设法将有用的想法传达给其他人,人类一向希望扩大自己的感官和智力的范围。多年来,人类发明了许多仪器以便看得更清楚、懂得更多.例如,为了能够观察远处的事物,人类发明了望远镜;问了观察世界上非常细小的东西,研制了显微镜.无线电、电话及电报都是人类赖以扩达自己的听觉和说话功能范围的手段。

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