The number of pulses of energy transmitted per second is call the（）.<br>A:carrier frequency<br>B:pulse repetition rate<br>C:pulse length<br>D:pulse repetition time

The number of pulses of energy transmitted per second is call the（）.
A:carrier frequency
B:pulse repetition rate
C:pulse length
D:pulse repetition time

出自：海船船员证

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