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Published byAlan Harper Modified over 9 years ago
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Main idea: Why do surgeons use tiny television cameras? Where are television pictures sent?What are the advantages of the keyhole surgery? What is meant by keyhole surgery?
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Main idea: Where are the closed circuit TV cameras positioned? Who can make use of (CCTV) cameras? How are the CCTV cameras controlled? Why do the police use the information sent by the cameras?
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Main idea: Why do film makers use special cameras? When can filming begin? What are the stages of the process of making a film? How long can it take to make a full-length film?
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Main idea: What is the webcam?Why do people use webcams? What is a video conference?Where are webcams positioned?
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