At a place where the surface temperature is 15℃, how deep do you have to dig so as to get a temperature of 75℃、

试卷相关题目

• 1The underlined words geothermal energy in the third paragraph mean .

  A.renewable source

  B.underground source

  C.heat inside the earth

  D.temperature of the earth

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• 2The writer tells about the "special houses" because they

  A.show the excellent skills of the builders

  B.serve as an example of energy conservation

  C.are heated by different sources of energy

  D.are warmer than other types of houses

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• 3From the text we learn that coal .

  A.is quite easy to produce

  B.is not used most efficiently

  C.is the most common source of energy

  D.could be renewed only by new technology

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• 4How many ways of dealing with the energy problem are discussed in the text、

  A.Two

  B.Three

  C.Four

  D.Fiv

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• 5The person who told the story is probably a .

  A.farmer

  B.policeman

  C.country doctor

  D.newspaper reporter

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