33. The 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(C)
34. It 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(D)
35. Which 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B) It has been replaced by a more advanced system.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.(A)
【历年英语四级阅读全解析(2002-2008)】相关文章:
★ 2014年12月英语六级阅读理解真题训练:University
最新
2016-10-18
2016-10-11
2016-10-11
2016-10-08
2016-09-30
2016-09-30