According to the passage, which of the following has changed the most in the last 500 years、

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• 1More and more people are beginning to accept the idea that a person is dead

  A.when the heart stops beating.

  B.when the brain becomes less active.

  C.when doctors stop medical treatment.

  D.when the brain stops working.

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• 2The brain controls the other body activities through

  A.medical devices.

  B.small electrodes.

  C.the brain waves.

  D.the nerve cells.

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• 3When a person should be consider dead is currently a matter

  A.which has caused heated argument in the US.

  B.which few people in the US care much about.

  C.which only doctors can settle.

  D.which has already been settled.

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• 4Which of the following is NOT a phenomenon mentioned in the passage、

  A.The heart may keep beating after the brain has died.

  B.The body may still be alive after the heart and the brain have stopped working.

  C.The brain may still be active after the heart has stopped beating.

  D.The lung may keep breathing after the brain has died.

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• 5People in the past held that the difference between life and death

  A.was easy to tell.

  B.did not exist.

  C.lay in the brain.

  D.was open to debat

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• 6“some” in the last sentence of the first paragragh refers to

  A.some cocoa trees

  B.some chocolate drinks

  C.some South American Indians

  D.some shops

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• 7Thousands of Irish people starved during the “Potato Famine” because

  A.they were so dependent on potatoes that they refused to eat anything else

  B.they were forced to leave their homeland and move to America.

  C.the potato harvest was bad

  D.the weather conditions in Ireland were not suitable for growing potatoes.

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• 8Which country is the largest coffee producer、

  A.Colombia

  B.Brazil

  C.Ethiopia.

  D.Egypt

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• 9Which of the following statements is Not True, Acoording to the passage、

  A.Coffee is native to colombia

  B.One-third of the world’s population drinks coffee.

  C.Coffee can keep one awake.

  D.Coffee drinks were first made by Arabs.

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• 10Which of the following can help a person quit smoking、

  A.Using nicotine patches.

  B.Reading cigarette advertisements.

  C.Chewing ordinary gum.

  D.Participating in social activities.

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