軌道電路作業(yè)指導章節(jié)練習(2019.09.17)

A.2301.4HZ
B.2601.4HZ
C.2298.7HZ
D.2598.7HZ

A.2.7V
B.7V
C.7.4V
D.90mV

A.1701.4HZ
B.1698.7HZ
C.2001.4HZ
D.1998.7HZ

A.±55Hz
B.55Hz
C.±11Hz
D.11Hz

A.120
B.130
C.140
D.150

A.0.1
B.0.06
C.0.25
D.0.15