The author cites the behavior of warm-blooded mammals in order to illustrate which of the following、

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• 1Which of the following is not directly mentioned、

  A.A living thing may adapt in its structure.

  B.An organism may adapt in its function.

  C.A living creature may adapt in its genetic makeup.

  D.A living organism may adapt in its sleeping habit.

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• 2It can be inferred from this passage that the feathers of a bird care colored

  A.to frightened its enemies.

  B.to attract its enemies

  C.to adjust its body heat

  D.to match its environment

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• 3In the first paragraph, the word "environments" could best be replaced by

  A.contexts

  B.surroundings

  C.neighbors

  D.enemies

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• 4Some plants and animals develop superior characteristics so that they may

  A.help others of their kind get food, shelter and other things needed.

  B.survive even in extremely severe conditions

  C.become better adapted to the environments than others of their kin

  D.D.result in the evolution and production of more intelligent organisms.

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• 5Letters to the editor enable readers of a medical journal to express comments on

  A.any medical event.

  B.articles published in the same issue.

  C.articles published in that journal

  D.medical development.

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• 6What have the Ford motor company.General Motor's and Honda done concerning electric cars、

  A.They have started to produce electric cars.

  B.They have done extensive research on electric Cars

  C.They have given up producing electric cars.

  D.They have produced thousands of electric Cars

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• 7According to Tim Holmes of Ford Europe,battery-powered cars

  A.will be the main transportation vehicles in the future

  B.will not be the main transportation vehicles in the future.

  C.will be good to the environment in the future

  D.will replace petrol—powered vehicles in the futur

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• 8Which auto manufacturers are still producing electric vehicles、

  A.Toyota and Nissan

  B.General Motor's and Honda

  C.Ford and Toyota

  D.Honda and Toyota

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• 9According to the eighth paragraph,hybrid cars

  A.offer fewer mileage than petrol driven cars

  B.run faster than petrol driven cars

  C.run more miles than petrol driven cars

  D.offer more batteries than petrol driven cars

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• 10Which of the following is true about the hope of car manufacturers according to the last paragraph、

  A.Low-emission cars should be banned.

  B.Only zero-emission cars are allowed to run on motorways.

  C.The legislation will encourage car makers to produce more electric cars.

  D.The legislation will allow more 10w.emission to be produced.

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