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A Society Without
a Formal Authority{{/B}} In the seventeenth century, European soldiers who came across some Indian groups in the western Great Lakes found that several native tribes (部落) were living in the area without a formal leadership system. They appeared to be "quite friendly with each other without a formal authority Not only did the Indians appear to lack a formal system of authority, but they also deeply hated any efforts to control their actions. All members of the tribes knew what was required of them by lifelong (一生的) familiarity with the tasks of the area. These tasks tended to be simple, since the Indians’ rate of social change was slow. Thus, although subgroups such as soldiers had recognized leaders, no real authority was A. the Indian system is also suitable for some small towns. B. the Indians tended to follow orders. C. our system is much better than the Indians’. D. the Indian system would be very difficult to implement in our society. [单项选择]男性，54岁。1年前日常活动后出现胸骨后疼痛，每日2～3次，近2月发作次数增多，每日5～6次，轻微活动也能诱发，发作时心电图ST段呈一过性水平压低，应诊断为（）
A. 稳定性心绞痛 B. 不稳定性心绞痛 C. 心内膜下心肌梗死 D. 中间综合症 E. 变异型心绞痛 [单选题]引风机运行中产生振动的常见原因是：叶片积灰或磨损引起的不平衡。
A.正确 B.错误 [单选题]( )是管内铁路危险货物运输管理的责任主体，各相关单位（部门）应落实领导负责制、专业负责制、岗位负责制、逐级负责制，确保铁路危险货物运输安全。
A.铁路局 B.总公司 C.车务段 D.直属站 [单项选择]非特异性尿路感染的病因不包括（）
A. 机体抵抗力低下 B. 妇女尿道的解剖距离阴道及肛门近 C. 月经和性生活 D. 憋尿 E. 以上都是 [判断题]环网柜的高压母线截面积,应根据本变电所负荷电流和穿越电流之和进行选择。
A.正确 B.错误 [判断题]正确使用施工机具、安全工器具和劳动防护用品是工作班成员的安全责任。
A.正确 B.错误 [单项选择]（）表现出来的是一个人对外部环境与各种信息等的反应方式、倾向与特性。
A. 动机 B. 个性 C. 性格 D. 能力 [单选题]外阴阴道念珠菌病典型的白带是
A.凝乳块状 B.泡沫状 C.黄色脓性 D.水样 E.血性 [多选题]人参的主要成分为（）。
A.人参活素 B.氨基酸 C.少量挥发油 D.葡萄糖 [单选题]伤风表证的特征是
A.恶寒重发热轻 B.恶寒轻发热轻 C.发热重恶寒轻 D.发热重恶寒重 E.发热轻而恶风自汗 [单项选择]由于钢管本身的特性，它常敷设于交通干道、十字路口、交通繁忙的场所，穿越河流、架管桥等施工复杂的场所以提高燃气输送的可靠性。钢管的耐腐性差，但采用绝缘防腐后的钢管埋设于地下的使用年限约为( )年。
A. 60 B. 40 C. 30 D. 20 我来回答: 提交
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