1、It is not a bad habit for a driver to frequently change lanes.
A、Right
B、Wrong
Answer：B
2、The sign on the right indicates that the speed limit is 50km/hour.
A、Right
B、Wrong
Answer：B
3、It is safest for a motor vehicle driver to overtake the vehicle in front from its righthand on this kind of road.
A、Right
B、Wrong
Answer：B
4、The sign on the left indicates U-turn is allowed here.
A、Right
B、Wrong
Answer：A
5、When putting out a fire disaster that gives out corrosive steam or poisonous gas, the firefighters should wear gas masks and other related protective articles and operate from the windward side.
A、Right
B、Wrong
Answer：A
6、When a motor vehicle slides sideways on a road covered by ice and snow, the driver should violently turn the steering wheel to adjust the direction.
A、Right
B、Wrong
Answer：B
7、If a motor vehicle misses an exit on the expressway, the driver may reverse along the road shoulder.
A、Right
B、Wrong
Answer：B
8、The sign on the right side indicates that turning left is not permitted at the intersection ahead.
A、Right
B、Wrong
Answer：A
9、When a motor vehicle approaches the exit of a tunnel the driver should firmly hold the steering wheel to prevent any harmful effects of a strong side wind.
A、Right
B、Wrong
Answer：A
10、When a motor vehicle deviates from the normal direction due to steering failure, what should the driver do?
A、Immediately steer and adjust
B、Reduce speed and stop the vehicle as early as possible
C、Steer to the side where there is no obstacle to evade
D、Steer to the side where there is an obstacle to evade
Answer：B
11、After entering the acceleration lane of an expressway, the driver should increase the speed to how many kilometers per hour?
A、More than 30 km/hour
B、More than 40 km/hour
C、More than 50 km/hour
D、More than 60 km/hour
Answer：D
12、When driving a motor vehicle into a traffic flow, drivers should not hold up other vehicles.
A、Right
B、Wrong
Answer：A
13、When driving into the traffic flow on a main road from a relief road, drivers should speed up.
A、Right
B、Wrong
Answer：B
14、When encountering such a situation, the motor vehicle driver should change to the left lane rapidly.
A、Right
B、Wrong
Answer：B
15、The main impact of muddy roads on safe driving is that the wheels may easily spin and skid
A、Right
B、Wrong
Answer：A
16、When a bicycle occupies the motor vehicle lane and obstructs the traffic, the driver should sound the horncontinuously and speed up to bypass on the left of the bicycle.
A、Right
B、Wrong
Answer：B
17、The sign on the right warns to keep a safe distance on the road ahead.
A、Right
B、Wrong
Answer：B
18、When a motor vehicle accidentally hits the guardrail of a highway, an effective protective measure is to turn dramatically in the opposite direction.
A、Right
B、Wrong
Answer：B
19、The sign on the left indicates that drivers should stop to take a pass card at the toll station ahead.
A、Right
B、Wrong
Answer：A
20、Mr. Tong drove a large bus(capacity 55 people and carrying 54)to Taiyuan City. When he drove on a muddy road at the speed of 45 kilometers per hour, the bus skidded into a deep ditch, killing 14 people dead and badly injuring 40 What's the main illegal act committed by Mr Tong?
A、Overloaded
B、Speeding
C、Driving after drinking
D、Fatigued driving
Answer：B