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为探讨交通警察在指挥交通时，受到多种职业因素作用而影响健康的状况,本文采用世界卫生组织推荐的神经行为核心测试组合(WHO-NCTB)，对交通警察进行了测试。1对象与方法1.1对象：选择在各交通路口执勤的且警龄大于1年的外勤警192人为暴露组，并按工作性质分为固定警和流动警。
In order to explore how traffic police can affect health through various occupational factors while directing traffic, this paper tests traffic police by using the WHO-NCTB, a core behavioral test set recommended by the World Health Organization. 1 Subjects and Methods 1.1 Subjects: 192 field police officers who choose to work at all junks and older than 1 year are field exposed groups, and are classified into fixed and mobile police according to the nature of their work.