62.磁控管(magnetron)與速調管(klystron)的峰值功率(peak power),分別為何?
(A)2 MW,5 MW
(B)10 MW,25 MW
(C)50 W,100 W
(D)200 W,400 W
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統計: A(1132), B(449), C(195), D(136), E(0) #1634008
統計: A(1132), B(449), C(195), D(136), E(0) #1634008