By saying “We needed them yesterday” (paragraph7), Stover means that snake-like robots_____  .

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• 1Choset believes that his invention _____  .

  A.can be attached to an electronic arm

  B.can be used by hobbyists is model airplanes

  C.can find victims more quickly than a sniffer dog

  D.can sense its way no better than its operators

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• 2Which institution is responsible for the development of Choset’s robots 、

  A.Robodics Trends .

  B.Pittsburgh City Council

  C.Carnegic Mellon University .

  D.Federal Emergency Management Agency .

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• 3Which of the following is the author’s main argument 、

  A.It’s cheap to self-treat your own illness.

  B.It’s embarrassing to discuss your bad habits.

  C.It’s reasonable to put up a medical website .

  D.It’s dangerous to be your own doctor

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• 4According to the study of Brown Medical School , _____ .

  A.more than 6 million Americans distrust doctors

  B.only 1/10 of medical websites aim to make a profit

  C.about 1/10 of the websites surveyed are of high quality

  D.72 of health websites offer incomplete and faulty facts

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• 5Some Americans stay away from doctors because they _____  .

  A.find medical devices easy to operate

  B.prefer to be diagnosed online by doctors

  C.are afraid to face the truth of their health

  D.are afraid to misuse their health insurance

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• 6What it the text mainly about 、

  A.Snake-like robots used in industries

  B.Snake-like robots made to aid in rescues.

  C.The development of snake-like robots .

  D.The working principles of snake-like robots .

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