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【单选题】
NJ10型电客车，切除ATP情况下，按开门按钮，有蜂鸣器声音，但全列车门无法打开，可以查看（）保险开关是否落下。
A.
DCTCB_L
B.
DOSCB_L
C.
DOTCB_L
D.
DRCB
参考答案：
参考解析：
刷刷题刷刷变学霸
举一反三
【单选题】Some pessimistic experts feel that the automobile is bound to fall into disuse. They see a day in the not-too-distant future when all autos will be abandoned and allowed to rust. Other authorities, ho...
A.
How to render automobiles pollution-free.
B.
How to make smaller and safer automobiles.
C.
How to solve the problem of traffic jams.
D.
How to develop an automated subway system.