1、How many kinds of law-breaking acts are displayed in flash 4?
A、One
B、Two
C、Three
D、Four
Answer：C
2、It is not a bad habit for a driver to frequently change lanes.
A、Right
B、Wrong
Answer：B
3、Drivers may turn left when seeing these hand signals.
A、Right
B、Wrong
Answer：A
4、The sign on the right warns of a dangerous mountainside road on the left of the road ahead.
A、Right
B、Wrong
Answer：B
5、It is an illegal act for the driver to make calls while driving.
A、Right
B、Wrong
Answer：A
6、After a motor vehicle enters the ramp from an expressway, it should reduce its speed below the prescribed speed limit.
A、Right
B、Wrong
Answer：A
7、The sign on the right indicates a one-kilometer distance from the ETC toll station.
A、Right
B、Wrong
Answer：A
8、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
9、The sign on the right indicates that the number of the lanes ahead will increase.
A、Right
B、Wrong
Answer：B
10、Having driven his vehicle at 110km/hour on an urban road, Mr. Lin is trying to leave the scene after a rear-end collision but is held back by bystanders. The alcohol concentration in his blood, tested in an alcohol test by the traffic police, is 135.8mg per hundred milliliters. Which of the following law-breaking acts did Mr. Lin commit?
A、Drunk driving
B、Speeding
C、Fatigued driving
D、Hit-and-run driving
Answer：ABD
11、The driver should drive on the left in this kind of tunnel.
A、Right
B、Wrong
Answer：B
12、If the road condition behind is good, motor vehicle drivers should reverse rapidly.
A、Right
B、Wrong
Answer：B
13、What should be checked before driving?
A、No parts need to be checked
B、Whether the tires have been cleaned
C、Where the spare tire is placed
D、The fastening and air pressure of tires
Answer：D
14、The sign on the right warns of a widened right-hand road ahead.
A、Right
B、Wrong
Answer：B
15、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
16、When a wounded person is unable to get off the vehicle by himself/herself, he/she should be removed from the vehicle so as to avoid a secondary injury.
A、Right
B、Wrong
Answer：A
17、Before a motor vehicle enters a tunnel, the driver should adjust the speed in accordance with the indication of the traffic sign at the entrance of the tunnel.
A、Right
B、Wrong
Answer：A
18、What should be done to keep safe when a motor vehicle driver is overtaking in this condition?
A、Reducing speed and keeping a safe distance
B、Continuously sounding the horn to indicate the vehicle in front
C、Accelerating to pass while keeping a certain distance
D、Overtaking by occupying the opposite lane
Answer：A
19、At 3: 40 a.m. one day, Mr. Sun drove a large bus with 54 passengers(capacity 55 people). At the spot of 229 kilometers mark by 300 meters on Suiyue Expressway, the bus had a rear-end collision with a heavy semi-trailer driven by Mr. Li when passengers were getting off from the bus. As a result of the accident, 26 people were killed and 29 injured. According to the investigation afterwards, Mr. Li had been driving the bus since he left the place of departure at 6 p.m. the day before without any rest. What are the main illegal acts of the two drivers?
A、Mr. Sun illegally parked
B、Mr. Sun carried more passengers than permitted
C、Mr. Li exceeded speed limit
D、Mr. Li kept driving when tired
Answer：AD
20、When a motor vehicle passes over an overflowing bridge, what should the driver do after stopping and observing closely?
A、Change to a high gear and pass rapidly
B、Constantly observe the changes of the flow
C、Prepare to stop at any time
D、Change to a low gear and pass through at a constant speed
Answer：D
21、When a motor vehicle temporarily stops in fog, which lamp should be turned on?
A、Hazard lamp, clearance lamp and rear position lamp
B、Left-turn indicator, clearance lamp and rear position amp
C、Headlamp, clearance lamp and rear position lamp
D、Reverse lamp, clearance lamp and rear position lamp
Answer：A
22、The crosswalk of the intersection warns that pedestrians have priority.
A、Right
B、Wrong
Answer：A
23、The sign on the right indicates that the speed limit of 40km/hour is lifted on the road ahead.
A、Right
B、Wrong
Answer：A
24、When encountering this situation in a residential area the driver should speed up and pass in front of the bicycle.
A、Right
B、Wrong
Answer：B
25、It is correct for the driver to drive on an expressway in the way shown in the flash.
A、Right
B、Wrong
Answer：B