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风机的（）起着集气作用，又称集流器。
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管理者除了人际关系，信息传递的方面角色外，还有（）
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颅内脊索瘤的特点或表现是()
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（）成为经济和政治体制改革的基本面向。
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2010年3月环保部门现场检查某企业时发现，该企业在未办理环评审批手续的情况下，于2009年底建成并投产，厂区内建有与建设项目配套的水污染防治设施，但该建设项目自投产以来，一直未经环保部门验收。现场取样监测，其水污染物达标排放。问：该企业有哪些环境违法行为？对该企业存在的环境违法行为，环保部门应如何处理？
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Boredom at Work ① You might find yourself staring at the clock, willing it to move faster so the boring workday will finally end. If your job offers little in the way of stimulation, there are steps you can take inside and outside the workplace. ② If you're bored with your job, it could be a sign that you've mastered the basic requirements and are ready for more of a challenge. You might not have been in your position long enough to request a promotion. Still, you can take steps to enhance your current role. Ask your boss if there are any projects you can help with. Volunteer to train less experienced colleagues. You'll feel more stimulated at work and also increase your chances of future advancement. ③ If you feel there is nothing left to learn in your present position, take steps to increase your knowledge. Your company's website might have online courses you can take during your slow periods, with your manager's permission. Enroll in training classes your company offers in areas that interest you. You also can pursue educational opportunities outside of the workplace, such as college classes, industry-specific training programs or self-improvement courses. If the knowledge you acquire doesn't help you in your present position, it might eventually help you move into a more fulfilling position. ④ Look for ways to challenge yourself. If your job involves performing repetitive tasks, set a quota for the number of times you can accomplish a particular task during the course of a shift. This will give you something to shoot for. If you have co-workers who perform the same tasks, make a friendly wager to see who can do the most. You'll form stronger bonds with your colleagues, and your employer is likely to notice your increased productivity. ⑤ According to psychotherapist and career coach Nina Ham, boredom at work might be a symptom of dissatisfaction with your personal life. Finding sources of stimulation outside of work can have a positive impact on your attitude toward your job. Seeking counseling for an emotional issue can also be of benefit. If your personal life is going well and nothing you try seems to improve your engagement level at work, it might be time to consider a job or even a career change. If your job offers you little stimulation, there are steps you can take（）
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患者女，45岁，1年前开始逐渐出现颈后酸痛不适，双手麻木，不灵活，使用筷子困难。行走时有踩棉花感，易跌倒。查体：前臂外侧痛觉减退，四肢肌张力增高，双Hoffmann试验（+），踝阵挛（+），Babinski（+）。辅助检查：X线检查见颈5～6生理曲度消失，局部轻度后凸畸形，间隙狭窄，增生硬化；椎管矢状径15mm。颈椎病分型不包括（）
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分析差速器的工作原理
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语言学家索绪尔认为，一个符号包括了（）和（）两个不可分割的组成部份。
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审稿中承担基础工作的审级是（）