3. 雷達發射機每秒鐘所發射之派波次數，其名稱為何?
(A)Length of pulse
(B)Pulse Repetition Interval
(C)Pulse Repetition Rate
(D)Radar Frequency

答案：登入後查看
統計： A(7), B(19), C(83), D(12), E(0) #3003036