In the substation the power is stepped down from a transmission leve voltage to a distribution level voltage.（    ）

试卷相关题目

• 1The transmission network can move the power over long distances to its     w holesale  customer.（    ）

  A.Right

  B.Wrong

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• 2Usually the generating plants are very large and located near heavily populated  areas.（    ）

  A.Right

  B.Wrong

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• 3In developed countries, the traditional paradigm for moving electricity     a round is very simple.（    ）

  A.Right

  B.Wrong

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• 4The exhaust steam temperature does not rely on the temperature of the     cooling water which enters the condenser.（    ）

  A.Right

  B.Wrong

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• 5The temperature increase of the cooling water and the terminal differenrce depend  on  3 factors.（    ）

  A.Right

  B.Wrong

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• 6At the service location, the power is stepped down again from the service voltage to distribution voltage.（    ）

  A.Right

  B.Wrong

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• 7According to the author, knowing the cause of the misery will help（    ）

  A.shorten the duration of the illness

  B.the patient buy medicine over the counter

  C.the patient obtain cheaper prescription drugs

  D.prevent people from catching colds and the flu

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• 8We learn from the passage that（    ）

  A.one doesn't need to take any medicine if he has a cold or the flu

  B.aspirin should not be included in over-the-counter medicines for the flu

  C.delayed treatment of the flu will harm the liver and central nervous system

  D.over-the-counter drugs can be taken to ease the misery caused by a cold orthe fu

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• 9According  to  the  passage,  to  combat  the  flu  effectively,（    ）

  A.one should identify the virus which causes it

  B.one should consult a doctor as soon as possible

  C.one should take medicine upon catching the disease

  D.one should remain alert when the disease is spreading

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• 10Which of the following symptoms will distinguish the flu from a cold、（    ）

  A.A stuffy nose

  B.A high temperature

  C.A sore throat

  D.A dry cough

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