What is the main concern of man on the fourth level?

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• 1 The phrase "heat recovery" refers to a ______.

   

  A. method of concealing the source of heat

  B. special form of air conditioning

  C. supplementary hot water system

  D. way of reclaiming and re-using heat

  
  

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• 2Mary had an _____; she's been knocked down by a taxi.

  A.event

  B.occurrence

  C.accident

  D.incident

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• 3 Man __________ to make sounds.

  A. used words

  B. followed many things in nature

  C. lifted heavy things

  D. grunted like a pig

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• 4 You can enlarge your vocabulary by

  A. reading more books

  B. finding new words in dictionaries

  C. writing more

  D. using the words in everyday life

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• 5 According to the author, the British government is trying to__________.

  A. punish young people if they are not cooperating with it

  B. reform the unemployed youngsters

  C. avoid the economic slowdown

  D. reduce welfare spending

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• 6 Public interest lawyers serve__________.

  A. only stores and landlords

  B. criminals only

  C. people who can pay high fees

  D. people who can pay little or nothing

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• 7 Public interest law includes__________.

  A. civil cases only

  B. criminal cases only

  C. criminal and civil cases

  D. wealthy clients' cases

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• 8 This new instrument is far superior __________ the old one we bought three years ago.

  A. than

  B. to

  C. over

  D. of

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• 9 Words __________ meamng, as we all know.

  A. convince

  B. convey

  C. contribute

  D. conquer

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• 10 I don' t like to disturb you, because you' re quite tired __________ today.

  A. of

  B. with

  C. out

  D. on

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