Which of the following is true about the newly-designed AUV?A.It has never been used in se
Which of the following is true about the newly-designed AUV?
A.It has never been used in sea exploration up to now.
B.It rises and falls very fast in deep sea in a straight line.
C.The power charging has to be done when it is not moving.
D.It is able to send and receive signals under deep water.