案例：某甲驾驶小四轮农用车在运输途中与某乙驾驶的大型客车相撞，造成两车受损，某甲及9名乘客受伤。鉴于某甲伤势严重急需抢救，而其居住地（在外县）离事发地较远的特殊情况，当地公安交通管理部门指定某乙预付伤者抢救费用50O0元。事故发生后第十日，某甲因救治无效身亡； Case: A small four-wheeled agricultural vehicle collided with a large passenger car driven by a B while traveling, causing damage to both vehicles and wounding a 9-passenger passenger. In view of the special circumstances in which A is in urgent need of emergency and the residency (in other counties) is far away from the incident, the local public security and traffic control department designated a B prepaid rescue cost of 50O0 yuan. On the tenth day after the accident, one A died because of invalid treatment;