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2010年7月15日，某亚麻厂正在生产的梳麻车间、前纺车间和准备车间的联合厂房突然发生亚麻粉尘爆炸建火。一瞬间，停电停水，477名职工大部分被围困在火海之中。经及时抢救，多数职工脱离了危险区。 该厂的除尘系统采用布袋除尘，金属管道输送亚麻粉尘，事故导致整个除尘系统遭受严重破坏，部分厂房倒塌，地沟盖板和原麻地下库被炸开，车间内的大部分机器和电器设备损坏，企业停产，事故造成死亡35人，重伤5人，轻伤12人，直接经济损失800多万元。 根据以上场景，回答下列问题： 按照《企业职工伤亡事故分类标准》，该起事故类别属于( )爆炸。
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×年×月×日下午，D县正在建设的某大桥发生坍塌事故，造成29人死亡，22人受伤，直接经济损失3974.7万元。 经调查认定，这是一起严重的责任事故。由于施工、建设单位严重违反桥梁建设的法规标准、现场管理混乱、盲目赶工期，监理单位、质量监督部门严重失职，勘察设计单位服务和设计交底不到位，县政府及省交通厅、公路局等有关部门监管不力，致使大桥主拱圈砌筑材料未满足规范和设计要求，拱桥上部构造施工工序不合理，主拱圈砌筑质量差，降低了拱圈砌体的整体性和强度，随着拱上施工荷载的不断增加，造成1号孔主拱圈靠近0号桥台一侧3～4m宽范围内，砌体强度达到破坏极限而坍塌，受连拱效应影响，整个大桥迅速坍塌。 根据以上内容回答下列问题。 在建筑施工安全事故中，主要有哪五类伤亡事故
Quite a number of people have written to ask me, "How do you face life Have you ever felt lonely, lonely (26) the point of (27) " I say that once in the past I have. Now life is meaningful for me and full (28) joy. I have come to understand (29) Karl Marx meant when he said happiness (30) in struggle. Work and study give me the greatest (31) . My only complaint is that time is not (32) to me. Before and after work I often give acupuncture to (33) who have come to me help; during lunchtime, I listen to lessons on the radio; when I come home from work there are lessons on TV. The only time (34) reading and thinking is the evening, but often I have to see friends or answer letters at that time. (35) I wish I had a 48-hour day! As a (36) person I know fully well that time is valuable and life is (37) . I feel deeply sorry for those people who, (38) young and healthy, do not (39) the best years of their life. I often tell myself how wonderful it would be (40) I could take the hands of these friends and we could advance together in our studies.
某甲醇生产企业，生产原料为天然气。甲醇成品用企业备的10台载重量20t的槽罐车运输。在距离生产区1500m处建有甲醇灌装站，站内有6个单个储量15t的储罐和6个装车台，另有一个4m高钢制移动平台，工人可登上该平台开展日常维护工作。灌装作业由人工操作完成。站区避雷装置、防火标志及消防设施齐全。在罐装站内划定了黄色警戒线。所有槽罐车都按要求安装了防静电装置扣防火罩。 根据以上场景。回答下列问题： 根据《企业职工伤亡事故分类》，指出该罐装站可能发生的事故类别并说明引发的原因。
Questions 1 to 3 are based on the following conversation. At the end of the conversation, you will be given 15 seconds to answer the questions. Now listen to the conversation. Who is true of Lisa
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