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Task 4 A —Warning equipment . J — Protection devices B — Accident management K — Accident statistics C — Protection measures L— Safety standards D — Risk assessment M —Accident prevention E — Administrative controls N — Monitoring system F — Detection technique O — Special operation G — Failure analysis P — Medical aid H — Responsible person Q — Emergency rescue I — Harmful substances Examples: (Q) 应急救援( D )风险评估 ( ) 事故统计 ( ) 检测技术 ( ) 报警设备 ( ) 医疗救护 ( ) 有害物质 ( ) 管理控制 ( ) 保护措施 ( ) 责任人 ( ) 特殊作业 ( ) 失效分析