1、How many kinds of law-breaking acts are displayed in flash 3?
A、One
B、Two
C、Three
D、Four
Answer：B
2、The sign on the right warns of a narrowed road on both sides ahead.
A、Right
B、Wrong
Answer：B
3、Turning on the high-beam is an effective way to improve visibility in fog weather.
A、Right
B、Wrong
Answer：B
4、When a wounded person suffering burns is thirsty, he should only drink plain boiled water.
A、Right
B、Wrong
Answer：B
5、If a motor vehicle breaks down or causes a traffic accident on the expressway and cannot run normally the vehicle may be towed by any accompanying motor vehicles.
A、Right
B、Wrong
Answer：B
6、How should lamps be used when setting off in this situation?
A、Turn on the high-beam
B、Turn on the left indicator only
C、Turn on the left indicator and low-beam
D、Turn on hazard lamp
Answer：C
7、When a vehicle encounters a strong side wind, the driver should firmly hold the steering wheel and press the brake urgently if he feels the vehicle deviates horizontally from the normal direction.
A、Right
B、Wrong
Answer：B
8、Drivers may temporarily cross these central broken and solid yellow lines when overtaking.
A、Right
B、Wrong
Answer：A
9、What should motor vehicle drivers do when parking temporarily on a rainy day?
A、Turn on hazard lamp
B、Turn on front and back fog lamp
C、Turn on low-beam
D、Set up warning sign at the back of the vehicle
Answer：A
10、A correct measure to avoid tire burst of motor vehicles is to lower the tire pressure.
A、Right
B、Wrong
Answer：B
11、It is illegal to change lanes without turning on indicators.
A、Right
B、Wrong
Answer：A
12、What should motor vehicle drivers do under the circumstance shown in the flash?
A、Drive by borrowing the opposite lane
B、Brake suddenly and pass through at a lower speed
C、Drive by the outer side of the curve
D、Reduce speed fully and drive by the right side
Answer：D
13、When a motor vehicle catches fire, the driver should te to park the vehicle in an open place far away from urban areas, buildings, trees, other motor vehicles and flammable materials.
A、Right
B、Wrong
Answer：A
14、When braking, side skid or tail swing may occur if the rear wheels are blocked.
A、Right
B、Wrong
Answer：A
15、A motor vehicle should not pass the level crossing rapidly in this situation.
A、Right
B、Wrong
Answer：A
16、The sign on the left warns of no passing on the right-hand road ahead.
A、Right
B、Wrong
Answer：B
17、Which one of the following is a safe way for motor vehicles to converge into an intersection marked with this sign?
A、Speeding up and driving into the traffic flow directly
B、Driving into the traffic flow behind the gray car on the main road
C、Driving into the traffic flow from the front of the red car on the main road
D、Turning on the indicator and driving into the flow directly
Answer：B
18、The signs on each side warn of changes in road alignment ahead.
A、Right
B、Wrong
Answer：A
19、When driving on an expressway, drivers should not frequently change lanes.
A、Right
B、Wrong
Answer：A
20、The sign in front indicates that the highway entry is on the right side of the road.
A、Right
B、Wrong
Answer：B
21、When driving a motor vehicle into a traffic flow, drivers should not hold up other vehicles.
A、Right
B、Wrong
Answer：A
22、Drivers may go ahead when traffic polices posture is like this.
A、Right
B、Wrong
Answer：A
23、When fixing the unexposed bones in position, it is necessary to exceed the upper and lower joints of the wounded body part.
A、Right
B、Wrong
Answer：A
24、This sign indicates the traffic broadcast and radio television channel of highway.
A、Right
B、Wrong
Answer：B
25、When passing another vehicle on a foggy day, what should drivers do?
A、Slow down and pass slowly
B、Maintain a safety distance
C、Properly use lamps
D、Drive at a high speed
Answer：ABC