The word “spas” (Line 3, Par

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• 1Which of the following is true about the U.S. Navy underwater listening network、

  A.It is now partly accessible to civilian scientists.

  B.It has been replaced by a more advanced system.

  C.It became useless to the military after the cold war.

  D.It is indispensable in protecting endangered species.

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• 2It can be inferred from the passage that ________.

  A.new radio devices should be developed for tracking the endangered blue whales

  B.blue whales are no longer endangered with the use of the new listening system

  C.opinions differ as to whether civilian scientists should be allowed to use military technology

  D.military technology has great potential in civilian use

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• 3The deep-sea listening system makes use of ________.

  A.the sophisticated technology of focusing sounds under water

  B.the capability of sound to travel at high speed

  C.the unique property of layers of ocean water in transmitting sound

  D.low-frequency sounds traveling across different layers of water

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• 4The underwater listening system was originally designed ________.

  A.to trace and locate enemy vessels

  B.to monitor deep-sea volcanic eruptions

  C.to study the movement of ocean currents

  D.to replace the global radio communications network

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• 5The passage is chiefly about ________.

  A.an effort to protect an endangered marine species

  B.the civilian use of a military detection system

  C.the exposure of a U.S. Navy top-secret weapon

  D.a new way to look into the behavior of blue whales

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• 6Early fitness spas were intended mainly for ________.

  A.the promotion of aerobic exercise

  B.endurance and muscular development

  C.the improvement of women’s figures

  D.better performance in aerobic dancing

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• 7What was the attitude of doctors towards weight training in health improvement、

  A.Positive.

  B.Indifferent.

  C.Negative.

  D.Cautious.

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• 8People were given physical fitness tests in order to find out ________.

  A.how ell they could do in athletics

  B.what their health condition was like

  C.what kind of fitness center was suitable for them

  D.whether they were fit for aerobic exercise

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• 9Recent studies have suggested that weight training ________.

  A.has become an essential part of people’s life

  B.may well affect the health of the trainees

  C.will attract more people in the days to come

  D.contributes to health improvement as well

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• 10You would be ________ a risk to let your child go to school by himself.

  A.omitting

  B.attaching

  C.affording

  D.running

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