1、 问题: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
答案: 【people, vehicles, roads, environment】
2、 问题:An accident that causes 1 to 2 serious injuries, or more than 3 minor injuries, or property loss of less than 30,000 yuan is called（ ）.
答案: 【general accident 】
3、 问题:The following is not classified according to the traffic accident of the responsible party.（ ）
A:motor vehicle accident
C:non-motor vehicle accident
答案: 【general accident】
4、 问题:According to the situation of accident loss, it can be divided into（ ）.
答案: 【minor accident;
5、 问题:The traffic system is in a safe state and avoids accidents.（ ）