论文部分内容阅读
1947~1979年,英国谢菲尔德(Sheffield)共有469名儿童意外死亡,其中226名儿童死于交通事故。从60年代起,致命性交通事故的发生率持续
From 1947 to 1979, a total of 469 children died in Sheffield, England, of whom 226 died in a car accident. Since the 1960s, the incidence of fatal traffic accidents has continued