Driving in rainy days. Turning on the high beam will improve visibility. A is right and B is wrong.

Driving is blocked in rainy days, and turning on the high beam will improve visibility (B). A is right and B is wrong.

Extension of driving precautions in rainy days;

1. window cleaning: in rainy and foggy days, the humidity is high, and the water vapor is easy to condense on the windshield surface, which damages the driver's sight and is prone to traffic accidents.

2. Check the vehicle: check the safety and technical conditions of the vehicle, especially the brakes, lights and wipers. Anti-fog lamps and width indicator lamps can play the role of identification and warning in rainy and foggy days. Wipers can sweep away the fog and water droplets on the windshield, and brakes can control the speed at critical moments to avoid colliding with other vehicles. Therefore, it is very important to ensure that these devices are always in a normal state.

3. Adjust your physical condition: When driving in rainy days, the driver's sight is affected to a certain extent, and he must always maintain a high degree of concentration, especially in the optic nerve center. Long-term high concentration is prone to visual and physical fatigue. So be sure to be in good health before going out, and don't drive reluctantly and tired.

4. Prevent the wheels from slipping: When driving in the rain, "lubricant" is formed between the rain on the road surface and the tires, which makes the braking performance of the car worse and easy to slip. Therefore, the driver should hold the steering wheel with both hands in balance, keep driving in a straight line at a low speed, and when turning, he should step on the brakes to slow down to prevent the vehicle from slipping due to tire locking.