It can be inferred from the passage that ________.

试卷相关题目

• 1The 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

  开始考试点击查看答案
• 2The 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

  开始考试点击查看答案
• 3The 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

  开始考试点击查看答案
• 4What is the passage mainly about、

  A.The process of gradual memory loss.

  B.The causes of absent-mindedness.

  C.The impact of the environment on memory.

  D.A way if encoding and recalling.

  开始考试点击查看答案
• 5What do we learn from the last paragraph、

  A.If we focus our attention on one thing, we might forget another.

  B.Memory depends to a certain extent on the environment.

  C.Repetition helps improve our memory.

  D.If we keep forgetting things, we’d better return to where we wer

  开始考试点击查看答案
• 6Which 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  B.It has been replaced by a more advanced system.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.

  开始考试点击查看答案
• 7The word “spas” (Line 3, Par

  A.1) most probably refers to ________.A.sports activities

  B.places for physical exercise

  C.recreation centers

  D.athletic training programs

  开始考试点击查看答案
• 8Early 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

  开始考试点击查看答案
• 9What was the attitude of doctors towards weight training in health improvement、

  A.Positive.

  B.Indifferent.

  C.Negative.

  D.Cautious.

  开始考试点击查看答案
• 10People 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

  开始考试点击查看答案