1、How many kinds of law-breaking acts are displayed in flash 3?
A、One
B、Two
C、Three
D、Four
Answer：B
2、vehicles may stop temporarily in this area.
A、Right
B、Wrong
Answer：B
3、When the vehicle engine catches fire, what should the driver do first?
A、Turn off the engine as soon as possible
B、Extinguish the fire with water
C、Open the hood to extinguish the fire
D、Extinguish the fire from the leeward direction
Answer：A
4、The sign in front indicates a one-kilometer distance from the highway entry.
A、Right
B、Wrong
Answer：A
5、On which of the following roads may the wheels be most easily locked when braking?
A、Concrete road
B、Dirt road
C、Road covered by ice and snow
D、Sand road
Answer：C
6、The guide arrow on the road surface of this lane indicates that there is an intersection on the right side of the road.
A、Right
B、Wrong
Answer：B
7、When passing an intersection, vehicle motor drivers are not allowed to overtake.
A、Right
B、Wrong
Answer：A
8、The sign on the right side warns of crosswind on the mountain pass ahead.
A、Right
B、Wrong
Answer：A
9、When this signal is constantly flashing, how should a driver react?
A、Speed up as soon as possible
B、Pull over and wait
C、Observe the traffic situation around to make sure of safe driving
D、Refrain from passing
Answer：C
10、Motor vehicle drivers are allowed to overtake as long as there are no oncoming vehicles.
A、Right
B、Wrong
Answer：B
11、When driving in a heavy rain, drivers should contro their speed to prevent their vehicles from sliding.
A、Right
B、Wrong
Answer：A
12、What should drivers keep in mind when driving on amountainous road?
A、Keep a safe distance
B、Avoid occupancy of another lane when making a turn
C、Downshift in advance when ascending an abrupt slope
D、Taking full advantage of engine braking when descending a long slope
Answer：ABCD
13、When rescuing a wounded person suffering from bone fracture, which of the following should be kept in mind?
A、Immediately send him/her to the hospital on a stretcher
B、Properly change the original posture when the injured person wounded
C、Dress the fracture with a bandage
D、Do not move the fractured body-part
Answer：D
14、Drivers may go straight and pass through when traffic police give these hand signals
A、Right
B、Wrong
Answer：B
15、When approaching a vehicle on a narrow slope, which one of the following ways is correct?
A、The descending vehicle yields to the ascending
B、The vehicle which is further from the slope crest should yield
C、The ascending vehicle yields to the descending
D、If the descending vehicle has reached the midpoint while the ascending vehicle has not yet set out, the descending vehicle must yield.
Answer：A
16、When braking failure happens to a fast-moving motor vehicle, what should be done by the driver to brake?
A、Continuously depressing the brake pedal
B、Immediately changing to a low gear to reduce speed and using the handbrake
C、Swiftly depressing the clutch pedal
D、Swiftly pulling up the handbrake
Answer：B
17、When a motor vehicle breaks down and cannot be moved away from the expressway, the driver and all passengers should stay in the vehicle and wait for the rescue personnel.
A、Right
B、Wrong
Answer：B
18、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
19、When encountering this situation on a mountainous road, motor vehicle drivers should overtake the vehicle in front by speeding up.
A、Right
B、Wrong
Answer：B
20、It is correct for the driver to drive on an expressway in the way shown in the flash.
A、Right
B、Wrong
Answer：B