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[单选题]
120km/h及以下运行区段锚段长度在800m及以上的接触线接头数量限界值不得超过()个。
A.2
B.3
C.4
D.5
查看答案
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A.2
B.3
C.4
D.5
A.120km/h以下
B.120km/h及以下
C.160km/h以下
D.160km/h及以下
A.120km/h以下
B.120km/h及以下
C.160km/h以下
D.160km/h及以下
A.2
B.4
C.6
D.8
A.80
B.120
C.160
D.200
A.≤160km/h
B.≤120km/h
C.>160km/h