The passage is chiefly about ______. Which of the following is true about the Navy underwater listening network?

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问题 The passage is chiefly about ______.
Which of the following is true about the Navy underwater listening network?

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B、It has been replaced by a more advanced system.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

答案A

解析

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本试题收录于：公共英语四级笔试题库公共英语（PETS）分类

公共英语四级笔试

公共英语（PETS）

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The passage is chiefly about ______. Which of the following is true about the Navy underwater listening network?

公共英语四级笔试

公共英语（PETS）

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