In modern fathometers the sonic or ultrasonic sound waves are produced electrically by means of a(n)（）. -题库考试答案搜索网

In modern fathometers the sonic or ultrasonic sound waves are produced electrically by means of a(n)（）.

单选题

2022-01-18 11:30

A、transmitter
B、transducer
C、transceiver
D、amplifier

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正确答案

B

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标签：海洋学基本知识

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