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由银行发行的股票、债券均属于银行证券。( )
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×月×日16时48分，H省某县城关镇西街居民陈某家发生火药爆炸事故，共有1500kg制鞭炮用药物爆炸，冲击波波及300m，造成27人死亡，轻重伤18人。爆炸波及73户，严重损坏房屋141间，损坏各种家具、家用电器200多件，直接经济损失18.7万元。 该县外贸中转站电工陈某(停薪留职)，县十五里店乡外贸经营处退休干部何某、十五里店乡冯湾村村民李某等3人，在没有任何申请、未经公安部门许可、工商部门注册、税务部门登记、乡镇企业主管部门和镇政府批准的情况下，非法生产烟花爆竹。村民李某将430kg制药原料铝镁合金粉(强还原剂)、高氯酸钾(强氧化剂)等称好后，叫工人混合，筛在原存湿药地面上。因地面湿，外面雪后空气湿度大，药物吸湿性强，镁、铝合金粉遇水产生氢气，使混合药物内部升温，产生化学反应燃烧爆炸。 事故原因分析如下： 1．违反烟花爆竹生产管理规定，把工厂建在居民稠密区，非法生产。 2．生产技术负责人根本不懂药物性能和安全操作技术，只是凭所谓“广告”去学了2小时的制鞭炮技术。 3．严重违反爆炸物品存放规定，干药、湿药、成品、半成品超量、混存，超量百倍配制药物，并且房屋结构不符合安全规定，生产工序紧密相连。 4．没有防火防爆设施。 根据以上场景，回答下列问题： 《安全生产法》第七十四条规定，生产经营单位发生生产安全事故，经调查确定为责任事故的，除了应当查明事故单位的责任并依法予以追究外，还应当查明( )的责任，对有失职、渎职行为的，依照本法第七十七条的规定追究法律责任。
阅读《故都的秋》中的这段文字，然后回答下列问题。 北方的果树，到秋来，也是一种奇景。第一是枣子树：屋角，墙头，茅房上边，灶房门口，它都会一株株地长大起来。像橄榄又像鸽蛋似的这枣子颗儿，在小椭圆形的细叶中间，显出淡绿微黄颜色的时候，正是秋的全盛时期；等枣树落叶，枣子红完，西北风就要起来了，北方便是沙尘灰土的世界，只有这枣子、柿子、葡萄，成熟到八九分的七八月之交，是北国清秋的佳日，是一年之中最好也没有的黄金季节。 枣子树顽强的生命力是怎么表现的
2 Large, multinational corporations may be the companies whose ups and downs seize headlines. But to a far greater extent than most Americans realize, the economy’s vitality depends on the fortunes of tiny shops and restaurants, neighborhood services and facto- ries. Small businesses, defined as those with fewer than 100 workers, now employ nearly 60 percent of the work force and are expected to generate half of all new jobs between now and the year 2000. Some 1.2 million small firms have opened their doors over the past six years of economic growth, and 1989 will see an additional 200,000 entrepreneurs striking off on their own. Too many of these pioneers, however, will blaze ahead unprepared. Idealists will overestimate the clamor for their products or fail to factor in the competition. Nearly every one will underestimate, often fatally, the capital that success requires. Midcareer execu tives, forced by a takeover or a restructuring to quit the corporation and find another way to support themselves, may savor the idea of being their own boss but may forget that en trepreneurs must also, at least for a while, be bookkeeper and receptionist, too. According to Small Business Administration data, 24 of every 100 businesses starting out today are likely to have disappeared in two years, and 27 more will have shut their doors four years from now. By 1995, more than 60 of those 100 start-ups will have folded. A new study of 3,000 small businesses, sponsored by American Express and the National Federation of Independent Business, suggests slightly better odds: Three years after start-up, 77 percent of the companies surveyed were still alive. Most credited their success in large part to having picked a business they already were comfortable in. Eighty percent had worked with the same product or service in their last jobs. Thinking through an enterprise before the launch is obviously critical. But many entre- preneurs forget that a firm’s health in its infancy may be little indication of how well it will age. You must tenderly monitor its pulse. In their zeal to expand, small business owners often ignore early warning signs of a stagnant market or of decaying profitability. They hopefully pour more and more money into the enterprise, preferring not to acknowledge eroding profit margins that mean the market for their ingenious service or product has evaporated, or that they must cut the payroll or vacate their lavish offices. Only when the financial well runs dry do they see the seriousness of the illness, and by then the patient is usually too far gone to save. Frequent checks of your firm’s vital signs will also guide you to a sensible rate of growth. To snatch opportunity, you must spot the signals that it is time to conquer new markets, add products or perhaps franchise your hot idea. What’s the main idea of this passage
×年×月×日14时7分，某市煤气公司液化气站的102号400m3液化石油气球罐发生破裂，大量液化石油气喷出，顺风向北扩散，遇明火发生燃烧，引起球罐爆炸。由于该球罐爆炸燃烧，大火烧了19个小时，致使5个400m3的球罐，4个450m3卧罐和8000多只液化石油气瓶(其中空瓶3000多只)爆炸或烧毁，罐区相邻的厂房、建筑物、机动车及设备等被烧毁或受到不同程度的损坏，直接经济损失约627万元，死36人，重伤50人。该球罐自投入使用后的两年零两个月使用期间，球罐经常处于较低容量，只有3次达到额定容量，第三次封装后4天，即在18日破裂。该球罐投用后，一直没有进行过检查，破裂前，安全阀正常，排污阀正常关闭。球罐的主体材质为I5MnVR，内径9200mm，壁厚25mm，容积400m3，用于贮存液化石油气。 1．根据断口特征和断裂力学的估算，该球罐的破裂是属于低应力的脆性断裂，主断裂源在上环焊缝的内壁焊趾上，长约65mm。 2．经宏观及无损检验，上、下环焊缝焊接质量很差，焊缝表面及内部存在很多咬边、错边、裂纹、熔合不良、夹渣及气孔等缺陷。 3．事故发生前在上下环焊缝内壁焊趾的一些部位已存在纵向裂纹，这些裂纹与焊接缺陷(如咬边)有关。 4．球罐投入使用后，从未进行检验，制造、安装中的先天性缺陷未及时发现和消除，使裂纹扩展，当球罐内压力稍有波动时便造成低应力脆性断裂。 根据以上内容回答下列问题： 该起事故应如何成立事故调查组
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