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

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• 1Why 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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• 2Who benefited the least from fridges according to the author、

  A.Inventors.

  B.Consumers.

  C.Manufacturers.

  D.Traveling salesmen.

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• 3Which of the following phrases in the fifth paragraph indicates the fridge’s negative effect on the environment、

  A.“Hum away continuously”.

  B.“Climatically almost unnecessary”.

  C.“Artificially-cooled space”.

  D.“With mild temperatures”.

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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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