Which of the following statements is true、

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• 1Americans are disturbed by generalizations others make about them because

  A.different Americans have different sources of origin.

  B.not all Americans were born and raised in the U. S.

  C.American culture has not been thoroughly studie

  D.D.they, as individuals, do not have the same ideas and ways of doing things.

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• 2Individual Americans may think that their values

  A.are based on their personal choices.

  B.are forced on them by the society in which they were born.

  C.can also be found in other cultures.

  D.should be recognized the world over.

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• 3Americans may think that “American culture”

  A.does not really exist.

  B.is better than other cultures.

  C.is different from other cultures.

  D.is highly valued around the world.

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• 4Americans, when in the United States, see themselves as

  A.representatives of their country.

  B.people different from person to person.

  C.individuals much the same as foreigners.

  D.individuals that share the same values and way of lif

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• 5A tragedy like the sinking of the Titanic never happened again.

  A.Right

  B.Wrong

  C.Not mentioned

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• 6What does the writer say about tap water、 Which of the following is NOT correct、

  A.Tap water reflects the concentrations of hydrogen and oxygen isotopes in different regions.

  B.Tap water is a kind of soft drink in the United States.

  C.Tap water contains unique proportions of isotopes of hydrogen and oxygen.

  D.Tap water is used to cook food.

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• 7James R. Ehleringer tried to find out

  A.if our bodies break water down into its parts.

  B.if it is possible to collect hair samples across the country.

  C.if tap water contains unique proportions of isotopes of hydrogen and oxygen.

  D.if the composition of hair can indicate exactly where people are from.

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• 8Which of the following statements is meant by the writer、

  A.Ehleringer was successful in his research.

  B.Ehleringer failed in his research.

  C.Ehleringer can be a successful detective.

  D.Ehleringer's research proved successful in China.

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• 9What does the last paragraph tell you、

  A.The new technique can tell precisely where a person lives.

  B.Water supplied in different regions all come from the same source.

  C.Types of water used in different regions provide useful information for the police.

  D.Hair samples provide the most important clues to identify crimes.

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• 10Which of the following is closest in meaning to the title、

  A.Human hair may help detectives to solve crimes.

  B.Animal hair may help detectives to solve crimes.

  C.Detectives watch hairy criminals closely.

  D.Most detectives are hair specialists.

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