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当前学科：急诊科住院医师
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女，28岁，发热半月，弛张热型，伴恶寒、关节痛。体检：皮肤瘀点、Osler结节，心脏有杂音，考虑为感染性心内膜炎。确诊的直接证据来自（）
A
血液学检查
B
X线和心电图检查
C
超声心动图
D
免疫学检查
E
组织学和细菌学检查
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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. 1.Paragraph ①（） 2.Paragraph ②（） 3.Paragraph ③（） 4.Paragraph ④（） 5.Paragraph ⑤（） A.Boredom at work might be a symptom of dissatisfaction with your personal life. B.With nothing to learn in your present position, you can take steps to increase your knowledge. C.You can take steps to enhance your current role. D.Promotion is the most important factor that affects people's attitude towards work. E.Look for ways to challenge yourself. F.Being bored at work can be a miserable experience. 下列选项正确的是（） If your job offers you little stimulation, there are steps you can take（） If you′re bored with your job, it shows that you′ve mastered（） With your manager′s permission, you can take your company′s online courses during（） If your job involves（）, set a quota for the number of times you can accomplish a particular task. It′s said that boredom at work might indicate（）
有关回波时间（TE）的描述不正确的是（）
YB25/YB45型包装机运转过程中，在烟支输送通道两侧会产生大量的（）及烟支，影响烟组输送及烟支质量检测。