1、It is illegal to change lanes without turning on indicators.
A、Right
B、Wrong
Answer：A
2、When a wounded person suffering burns is thirsty he/she may drink a small quantity of lightly salty water.
A、Right
B、Wrong
Answer：A
3、The sign in front is an advance announcement of the directions led by the interchange.
A、Right
B、Wrong
Answer：A
4、How many kinds of law-breaking acts are displayed in flash 4?
A、One
B、Two
C、Three
D、Four
Answer：C
5、What should be done by the driver who intends to overtake but the motor vehicle in front neither reduces its speed nor allows the right of way?
A、Continuously sounding the horn and accelerating to overtake
B、Accelerating and continuing to overtake
C、Refraining from overtaking
D、Following the vehicle in front closely and finding a chance to overtake
Answer：C
6、The guide arrow on the road surface of this lane indicates that U-turns and left turns are permitted at the intersection ahead.
A、Right
B、Wrong
Answer：A
7、Drivers may go ahead when traffic polices posture is like this.
A、Right
B、Wrong
Answer：A
8、When driving on this section of the road, drivers should observe closely and prepare to yield to the animals crossing the road.
A、Right
B、Wrong
Answer：A
9、The sign on the right side warns of a sharp right turn ahead.
A、Right
B、Wrong
Answer：A
10、This sign warns to bypass from the left side to avoid the roadblock.
A、Right
B、Wrong
Answer：B
11、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
12、Motor vehicle drivers are allowed to make a U-turn at this intersection.
A、Right
B、Wrong
Answer：B
13、The drivers, loaders and supercargoes responsible for dangerous chemicals transportation should all full understand the chemical characteristics, potential risks, features of the packaging containers and emergency measures for any unexpected accidents.
A、Right
B、Wrong
Answer：A
14、In such circumstances, which one of the following statements is the safest measure for a motor vehicle driver to take?
A、Accelerate to overtake the vehicle in front as soon as possibl
B、Voluntarily reduce speed and refrain from overtaking
C、Sound the horn to warn the vehicle in front to yield
D、Turn on the headlamp to warn the oncoming vehicle to yield
Answer：B
15、What action is important on this kind of mountain road?
A、Take care of the dangerous hillside road on the left
B、Drive on the left
C、Drive along the central line of the road
D、Drive on the right side and pass slowly
Answer：D
16、The sign in front indicates a one-kilometer distance from the next left exit.
A、Right
B、Wrong
Answer：B
17、The sign on the right indicates that the number of the lanes ahead will increase.
A、Right
B、Wrong
Answer：B
18、The driver may not change lanes when the motor vehicle turns right at this intersection.
A、Right
B、Wrong
Answer：B
19、If a motor vehicle enters a driving lane under this situation, what should the driver do?
A、Control the driving speed and follow the last vehicle
B、Speed up and cut in front of the second vehicl
C、Speed up and cut in front of the first vehicle
D、Cut in between two vehicles at will
Answer：A
20、When a motor vehicle encounters thick fog on an expressway and the visibility is poor, the driver should immediately brake and stop.
A、Right
B、Wrong
Answer：B