A
Adjust the vehicle speed to the prescribed speed limit in advance.
✓
B
Pay attention to traffic signs such as speed limit, width limit, height limit, and turning on headlights when entering a tunnel.
✓
C
Honk the horn to signal before entering a tunnel with insufficient lighting and affecting visibility.
✓
D
Turn on the headlights after entering the tunnel.
ANSWER · A, B, C
Tunnel interior lighting is dim and the driving environment is relatively poor - a semi-enclosed state with small space, low visibility, and difficulty in evacuation and rescue. Before entering the tunnel, reduce speed, turn on headlights in advance, adjust speed within the prescribed limit, and observe traffic signs such as speed limits, width limits, height limits, and tunnel driving lights in advance. If lighting is insufficient and visibility is low, you may sound the horn to signal.
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