关于大型群众性活动防范恐怖袭击对策的思考
On Protective Strategies against Terrorist Attacks in Large Mass Activities
论大型群众性活动公共安全的风险评估
Risk Evaluation of Public Security for Large Scale Social Activities
有赛马、对歌和大型群众性歌舞活动。
Including horse racing , antiphonal singing , and big-scale folk dance .
大型群众性活动大型群众性活动大型群众性活动