The main research relationship of traffic safety is（）
A. people and vehicles
B. people and roads
C. vehicles and roads
D. people, vehicles, roads, environment
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Que mesure le PIB/habitant（）
A. Le niveau de vie
B. La satisfaction des habitants
C. Le nombre de produits X ou Y par habitant
D. L’inégalité de revenus des habitants
The following is not classified according to the traffic accident of the responsible party.（）
A. motor vehicle accident
B. general accident
C. non-motor vehicle accident
D. pedestrian accident
Traffic behaviors that are not likely to cause traffic accidents include（）
A. drunk driving
B. fatigue driving
C. normal driving
D. speeding
The following are active safety measures.（）
A. vehicle brake safety device
B. energy-absorbing steering columns
C. Anti-lock Braking System
D. Safety Driving Assist System
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