30.某雷達的脈波重現率(Pulse Repetition Frequency)為1000,求最大探測距離?
(A)40.5浬
(B)80.9浬
(C)101.1浬
(D)121.4浬

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統計: A(0), B(0), C(0), D(1), E(0) #2401546