单选题目前多普勒计程仪采用双波束系统的目的是为了()的影响。A消除海底的性质不同给反射带来B抑制海洋噪声C克服声能被吸收的现象D消除风浪所引起的船舶垂直运动和船舶摇摆
单选题
目前多普勒计程仪采用双波束系统的目的是为了()的影响。
A
消除海底的性质不同给反射带来
B
抑制海洋噪声
C
克服声能被吸收的现象
D
消除风浪所引起的船舶垂直运动和船舶摇摆
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