题目内容
据交通部去年对全国十个大城市的统计，S市的汽车交通事故率最低。S市在前年实施了汽车特殊安检制度，提高了安检的标准和力度。为了有效降低汽车交通事故率，其他大城市也应当像S市那样，对本市的汽车实施特殊安检。以下哪项，如果为真，最能削弱题干的论证？（）
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在塞普西路斯的一个古城蒙科云，发掘出了城市的残骸，这一残骸呈现出被地震损坏的典型特征。考古学家猜想，该城破坏是这个地区公元365年一次地震所致。以下哪项，如果为真，最有力地支持了考古学家的猜想？（）
综合安全技术 煤气站的水煤气和半水煤气的含氧量达到( )时必须停炉。
Cooperation is the common endeavor of two or more people to perform a task or reach a jointly cherished goal. Like competition and conflict, there are different forms of cooperation, based on group organization and attitudes.In the first form, known as primary cooperation, group and individual unite. The group contains nearly all of each individual’s life. The rewards of the group’s work are shared with each member. There is an interlocking identity of individual, group, and task performed. Means and goals become one, for cooperation itself is valued.While primary cooperation is most often characteristic of preliterate societies, secondary cooperation is characteristic of many modern societies. In secondary cooperation, individuals devote only part of their lives to the group. Cooperation itself is not a value. Most members of the group feel loyalty, but the welfare of the group is not the first consideration. Members perform tasks so that they can separately enjoy the fruits of their cooperation in the form of salary, prestige, or power. Business offices and professional athletic teams are examples of secondary cooperation.In the third type, called tertiary cooperation or accommodation, latent conflict underlies the shared work. The attitudes of the cooperating parties are purely opportunistic; the organization is loose and fragile. Accommodation involves common means to achieve antagonistic goals; it breaks down when the common means cease to aid each party in reaching its goals. This is not, strictly speaking, cooperation at all, and hence the somewhat contradictory term antagonistic cooperation is sometimes used for this relationship. According to the passage, why do people join groups that practice secondary cooperation()
建筑工程施工安全技术 两台以上蛙式打夯机同时作业时，左右间距不得小于( )。
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