母线的作用是什么（）。_变电运行工考试_全学科试题题库

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母线的作用是什么（）。
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阅读材料，回答题。 Deport them or notIn a country that defines itself by ideals，not by shared blood，who should be allowed to come，work and live here?In the wake of the Sept．1 1 attacks these questions have never seemed more pressing．On Dec．11，2001，as part of the effort to increase homeland security，federal and local authorities in 14 states staged“Operation Safe Travel”-raids on airports to arrest employees with false identification(身份证明)．In Salt Lake City there were 69 arrests．But those captured were anything but terrorists，most of themillegal immigrants from Central or South America．Authorities said the undocumented workers’illegal status made them open to blackmail(讹诈)by terrorists．Many immigrants in Salt Lake City were angered by the arrests and said they felt as if they were being treated like disposable goods．Mayor Anderson said those feelings were justified to a certain extent，“We’re saying we want you to work in these places，we’re going to look the other way in terms of what our laws are，and then when it’s convenient for us，or when we can try to make a point in terms of national security，especially after Sept．1 1，then you’re disposable．There are whole families being uprooted for all of the wrong reasons，”Anderson said．If Sept．1 1 had never happened．the airport workers would not have been arrested and could have gone oil quietly living in America．probably indefinitely．Ana Castr0，a manager at a Ben＆Jerry’s ice cream shop at the airport，had been workin9 10 years with the same false Social Security card when she was arrested in the December airport raid．Now she and her family are living under the threat of deportation(驱逐出境)．Castro’s case is currently waiting to be settled．While she awaits the outcome，the government has granted her permission to work here and she has returned to her job at Ben&Jerry’s．According to the author，the United States claims to be a nation__________．

患者刘某，男，27岁，未婚，职员。因"双侧腹股沟皮肤糜烂、渗液伴灼痛5天"就诊。患者10天前自觉双侧腹股沟微痒，无皮疹，自用"皮炎平"外搽后似好转。5天前剧烈运动后发现双侧腹股沟皮肤轻度糜烂，表面少量黄色渗液，伴灼痛感，未予重视。次日觉局部糜烂面逐渐扩大、渗液增多、灼痛加重，行走时尤甚，便于院外局部应用氧化锌油剂及口服抗过敏药，效果不佳。今日阴囊、肛周亦出现潮红、糜烂伴灼痛，故前来就诊。患者既往体健，无食物和药物过敏史，否认冶游史。发病以来，无畏寒发热、无腹痛腹泻、无尿频尿痛等。家族史中，其父亲和一个叔叔有类似病史，治疗后症状控制，而其兄弟姐妹无类似病史。依据患者病史与皮疹特点最可能患的疾病是（）

销联接的主要作用是定位、联接或锁定零件，有时还可以作为安全装置中的（）剪断元件。

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