Which of the following safety developments is NOT mentioned in the passage、

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• 1According to the second paragraph,most road accidents happen due to

  A.heavy traffic.

  B.human mistakes.

  C.B.human mistakes.C.engine failure.

  D.bad weather.

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• 2To reduce car crash rate,many scientists are working hard to

  A.design fully automatic cars.

  B.develop faster electric vehicles.

  C.analyze road deaths occurring worldwide each year.

  D.improve the safety of cars and develop new fuels.

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• 3In the last sentence of the second paragraph, "another" means

  A.another routine.

  B.another shift.

  C.another week.

  D.another person.

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• 4In the second paragraph, “the third" means

  A.the third week.

  B.the third shift.

  C.a third of the time.

  D.the third routin

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• 5According to the passage, the best solution on the problem seems to be

  A.not to change shifts from one week to the next.

  B.to make periods on each shift longer.

  C.to employ people who will always work at night.

  D.to find ways of selecting people who adapt quickly.

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• 6Satellite tracking and remote communication systems cna be used to

  A.reduce oil consumption.

  B.remove the obstacles on the road.

  C.call for help when one’s car crashes.

  D.help drivers get out of a traffic jam.

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• 7Which of the following statements is true of robotic drivers、

  A.It will take some time before robotic drivers are available.

  B.Robotic drivers are not allowed to driveon busy roads.

  C.Robotic drivers can never replace human drivers.

  D.Robotic drivers are too expensive to us

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