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 an unguarded railway intersection ahead.
A、Right
B、Wrong
Answer：B
3、The guide arrow on the road surface of this lane indicates that only right turns are permitted at the intersection ahead.
A、Right
B、Wrong
Answer：B
4、When a head-on collision with another vehicle is unavoidable, what should the driver do?
A、Change head-on collision to side collision
B、Immediately turn the steering wheel to the right side to evade
C、Immediately apply emergency braking
D、Immediately turn the steering wheel to the left side to evade
Answer：C
5、hen there is a braking failure on a downhill road the driver should immediately try to find and drive to an emergency lane; after stopping the vehicle on the emergency lane, the driver should pull up the stopping brake so as to prevent a second danger arising from the vehicle sliding.
A、Right
B、Wrong
Answer：A
6、When a wounded person suffering bone fracture in the thigh, shank or spine, moving the wounded person is usually prohibited.
A、Right
B、Wrong
Answer：A
7、When a tire suddenly bursts on the road, the driver should violently depress the brake pedal to reduce speed and stop the vehicle.
A、Right
B、Wrong
Answer：B
8、When driving on a foggy day, what kind of lamps should the driver turn on?
A、Fog lamp and hazard lamp
B、Fog lamp and indicator
C、Fog lamp and high-beam
D、Fog lamp and low-beam
Answer：A
9、When there is a braking failure on a downhill road, if there is no favorable terrain or opportunity to stop the vehicle, the driver should drop gear by one position or two positions, and control the speed by taking advantage of the braking role of the engine.
A、Right
B、Wrong
Answer：A
10、When passing this mountainous road, motor vehicle drivers should drive along the center of the road.
A、Right
B、Wrong
Answer：B
11、Mr. Tang drove a large bus with 74 passengers (capacity 30 people). When descending a long curving slope at a speed of 38 kilometers per hour, the bus overturned to a brook beside the road. As a result of the accident, 17 people were killed and 57 people injured. What's the main illegal act committed by Mr. Tang?
A、Driving after drinking
B、Carrying more passengers than permitted
C、Fatigued driving
D、Speeding
Answer：BD
12、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
13、The leading cause of this accident is that the driver failed to make sure that it was safe to reverse before doing so.
A、Right
B、Wrong
Answer：A
14、When a motor vehicle reaches a muddy or burst-and-muddy section of the road, the driver should stop, observe and select a level and solid section or a section with vehicle tracks.
A、Right
B、Wrong
Answer：A
15、Under such circumstances, motor vehicles are allowed to cross the central solid line to overtake.
A、Right
B、Wrong
Answer：B
16、Matches, sulfur and red phosphorus belong to which of the following dangerous chemicals?
A、Explosives
B、Oxidizing materials
C、Self-igniting articles
D、Inflammable solid materials
Answer：D
17、Motor vehicles should stop and wait when encountering two red lights flashing alternately at evel crossings.
A、Right
B、Wrong
Answer：A
18、The broken and solid white line on the road indicates that crossing is allowed on the solid line side.
A、Right
B、Wrong
Answer：B
19、This sign indicates that vehicles can either drive straight or turn right at the fly-over junction ahead.
A、Right
B、Wrong
Answer：B
20、What is the function of ABS during emergency braking?
A、Shortening the braking distance
B、Keeping steering capacity of the motor vehicle
C、Relief the braking inertia
D、Controlling directions automatically
Answer：B