单选题Loran-C uses the multiple pulse system because（）.ALess signal energy is necessary for receiver operationBMore signal energy is available at the receiverCIt significantly increases the peak powerDIt increases the signal capacity
单选题
Loran-C uses the multiple pulse system because（）.
A
Less signal energy is necessary for receiver operation
B
More signal energy is available at the receiver
C
It significantly increases the peak power
D
It increases the signal capacity
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