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

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• 1Which of the following statements is true、

  A.Americans do not like to make generalizations about themselves on the basis of regional differences.

  B.Americans have fixed ideas about different people coming from different regions and areas within their own country.

  C.Americans think that they are equal to one another no matter where they were born.

  D.Americans are trying hard to iron out their regional differences

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• 2Americans 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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• 3Individual 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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• 4Americans 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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• 5Americans, 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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• 6James 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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• 7Which 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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• 8What 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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• 9Which 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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• 10what 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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