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Of course, the computer, or the electric brain, has greatly facilitated our mental work and spare us the burden of calculating, restoring and searching; the automobile saves us time and makes our travel more convenient and the mobile phone has got people closer. But, these are just the extension of human brain, legs and voice. The Internet, however, has changed human life in a more fundamental way since its birth. First, as a newborn information delivering system, the Internet has made various information available at our fingers tip. Besides, Internet serves as the most convenient means for communication. Through Internet, people can discuss various problems and make friends. Last but not least, the Internet is also a faithful aid in our daily life since people can go shopping and get medical services online. To sum up, the Internet is indeed the most interesting and important invention man has ever made. 8. Brain Drain Brain drain is a delicate problem with which this country is confronted. In the last ten years or so, a lot of scientists and technicians have swarmed into developed countries for further studies or research work, let alone numerous promising students. And there are no indications that they will be back home before long. This country has paid the expenses of training them but lost them. How did that come about? It is self-evident that their delay of coming back is due to those favorable working and living conditions which are essential to research work. Sophisticated equipment makes it easier for one to gain academic achievements. Our competent scientists abroad are offered higher rewards and greater opportunities which contribute to their success in career. | 
