题目内容
（请给出正确答案）
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
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更多“The deep-sea listening system …”相关的问题
Mr. Smith ______ .
A．is pleased to talk with John
B．is tired of John's talks
C．enjoys listening to John's talks
The use of helium for deep-sea diving
A．helped to overcome the physical discomforts the divers experienced when nitrogen was used.
B．was found by Dr. Jeol Hiderbrand.
C．is still universally acknowledged as standard practice up to now.
D．all that is included in A, B, and C.
What is the foundation of the unique deep-sea communities？
A．Reef.
B．Black coral.
C．Fish.
D．Corals.
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
If they were exposed to oil, deep-sea organisms including fish and deep-sea corals______.
A．would definitely become extinct
B．could have their growth damaged
C．might enjoy an explosive growth
D．would stop reproducing permanently
A．Y
B．N
C．NG
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
Prince Henry aims to design vessels that could
A. make longer deep-sea voyages.
B. travel faster than those in use at that time.
C. explore the coastline of Portugal.
D. carry larger crews and more cargo than existing ones.
The 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
The 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
