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[单选题]
CR400BF系列动车组发生电机轴承超温报警(3121、3123、3125等)故障时,动车组自动施加最大常用制动限速至()km£¯h以下后自动缓解。
A.120
B.140
C.200
查看答案
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A.120
B.140
C.200
A.40
B.80
C.120
A.120
B.160
C.200
A.20
B.40
C.80
A.120
B.140
C.200
A.80
B.120
C.140
A.120
B.160
C.200
A.120
B.140
C.160