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螺旋桨的桨叶角可以在：（）.
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呼吸、心搏骤停5分钟可发生（）
2006年9月8日，湖南省岳阳县城饮用水源地新墙河发生水污染事件，砷超标10倍左右，8万居民的饮用水安全受到威胁和影响。最终经核查发现，污染发生的原因为河流上游排放，致使大量高浓度含砷废水流入新墙河。（）.
Women are also underrepresented in the administration and this is because there are so few women full professors. In 1985,Regent Beryl Milburn produced a report blasting（轰动）the University of Texas System administration for not encouraging women.The University was rated认为 among the lowest for the system.In a 1987 update ,Milburn commended the progress that was made and called for even more improvement. One of the positive results from her study was a System-wide program to inform women of available administrative jobs. College of Communication Associate Dean Patrica Witherspoon,said it is important that woman be flexible when it comesto relocating if they want to rise in the ranks. Although a woman may face a chilly climate on campus , many times in order for her to succeed , she must rise above the problems around her and concentrate on her work. Until women make up a greater percentage of the senior positions in the University and all academia,inequities will exist存在. "Women need to spend their energies(精力energy) and time doing scholarly activities that are important here at the University." Spirduso said. "If they do that will be successful in this system.If they spend their time in little groups mourning the sexual discrimination that they think exists here, they are wasting valuable study time." According to Spirduso,women need to （）. From this passage ,we know that（）. Which of the following statements is true?（） The title for this passage should be（）.
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女性，33岁，胸部外伤致左侧第4～6肋骨骨折，出现呼吸极度困难、发绀。体格检查：血压9/6kPa，心率100次／分，左侧呼吸音消失，叩诊鼓音，颈部有广泛的皮下气肿。此时，应首选下列哪项处理（）
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