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The passage is chiefly about______. The underwater listening system was originally designed______.
The passage is chiefly about______. The underwater listening system was originally designed______.
admin
2009-06-15
64
问题
The passage is chiefly about______.
The underwater listening system was originally designed______.
选项
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
答案
A
解析
根据第3段第1句“几十年前建立的全球水下监听系统本来是用于跟踪潜伏的敌船的。”揭示答案。
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本试题收录于:
职称英语卫生类B级题库职称英语分类
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职称英语卫生类B级
职称英语
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