A-A+
The deep-sea listening system makes use of ___
问题详情
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 travelling across different layers of water
参考答案
正确答案：C
解析：文章的最后一段讲述“the deep-sea listening system"的工作原理，其中讲到“What is most important，different layers of ocean water can act as channels for sounds…”，由此可见，这一系统就是利用了在传送声音方面"layers of ocean water"的独特特性，因此，C 是正确答案。
