Which of the following phrases in the fifth paragraph indicates the fridge’s negative effect on the environment、

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• 1Who benefited the least from fridges according to the author、

  A.Inventors.

  B.Consumers.

  C.Manufacturers.

  D.Traveling salesmen.

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• 2Why does the author say that nothing was wasted before the invention of fridges、

  A.People would not buy more food than was necessary.

  B.Food was delivered to people two or three times a week.

  C.Food was sold fresh and did not get rotten easily.

  D.People had effective ways to preserve their food.

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• 3The statement “In my fridgeless Fifties childhood, I was fed well and healthily.” (Line 1, Par

  A.2) suggests that ________.A.the author was well-fed and healthy even without a fridge in his fifties

  B.the author was not accustomed to using fridges even in his fifties

  C.there was no fridge in the author’s home in the 1950s

  D.the fridge was in its early stage of development in the 1950s

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• 4What is the author’s overall attitude toward fridges、

  A.Neutral.

  B.Critical.

  C.Objective.

  D.Compromising.

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• 5In what way can we make a machine intelligent、

  A.By making it work in such environments as deserts, oceans or space.

  B.By working hard for 10 or 20 years.

  C.By either properly programming it or changing its structure.

  D.By reproducing it.

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• 6What does the writer think about machines with human-like ability、

  A.He believes they will be useful to human beings.

  B.He believes that they will control us in the future.

  C.He is not quite sure in what way they may influence us.

  D.He doesn’t consider the construction of such machines possibl

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• 7The word “carbon” (Line 4, Par

  A.2) stands for ________.A.intelligent robots

  B.a chemical element

  C.an organic substance

  D.human beings

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• 8A robot can be used to expand our frontiers when ________.

  A.its intelligence and cost are beyond question

  B.it is able to bear the rough environment

  C.it is made as complex as the human brain

  D.its architecture is different from that of the present ones

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