【单选题】If you suspect that the illness might be serious you should not ______ going to the doctor.
【单选题】进路在锁闭状态时,进路上的道岔不应再转换,此时对进路上的道岔实行的锁闭是( )
【单选题】If you suspect that the illness might be serious, you should not ______ going to the doctor.
【单选题】__________you suspect something, I may as well tell you the whole truth.
【单选题】进路在锁闭状态时,进路上的道岔不应再转换,此时对道岔实行的锁闭为:
【单选题】进路在锁闭状态时,进路上的道岔不应再转换,此时对道岔实行的锁闭( )
【判断题】进路在锁闭状态时,进路上的道岔不应再转换。