问题
单项选择题
A Doppler log in the volume reverberation mode indicates（）.
A.speed being made good
B.speed through the water
C.the set of the current
D.the depth of the water
答案
参考答案：B
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A Doppler log in the volume reverberation mode indicates（）.
A.speed being made good
B.speed through the water
C.the set of the current
D.the depth of the water
参考答案：B