146.When a vehicle breaks down or encounters an obstacle at a railway level crossing, an emergencyresponse should be carried out immediately. The correct order is:
(A) Press the "Level CrossingEmergency Button" → "Push the broken-down vehicle off the crossing" → "When a train approaches,personnel quickly run away from the crossing."
(B) "When a train approaches, personnel quickly run awayfrom the crossing" → "Push the broken-down vehicle off the crossing" → Press the "Level CrossingEmergency Button."
(C) Press the "Level Crossing Emergency Button" → "When a train approaches,personnel quickly run away from the crossing" → "Push the broken-down vehicle off the crossing."
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