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易燃易爆区域不准使用铁器敲打管道和管件，必须敲打时，应用铜制工具。（）
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关于萎缩纹，不正确的是（）
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对我们青年学生来说，要为巩固和发展平等团结互助和谐的社会主义民族关系做贡献，必须（）。
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研究药物剂型的配制理论、生产技术、质量控制和合理应用等内容的综合性技术学科，称为（）
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某房地产建设项目实施到第3年时，由于物价上涨导致投资增加，那么因此增加的费用应从建设投资中的（）支出。
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关于斜面导板活动矫治器下列描述哪项不正确（）
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业务运营风险模型按照处理方式分为（）、监测确认、统计分析三类。
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Questions 26 to 30 are based on the following passage. Exercise is one of the few factors with a positive role in long-term maintenance of body weight. Unfortunately, that message has not gotten through to the average American, who would rather try switching to “light” beer and low-calorie bread than increase physical exertion. The Centers for Disease Control, for example, found that fewer than one-fourth of overweight adults who were trying to shed pounds said they were combining exercise with their diet. In rejecting exercise, some people may be discouraged too much by caloric-expenditure charts: for example, one would have to briskly walk three miles just to work off the 275 calories in one delicious Danish pastry (小甜饼). Even exercise professionals concede half a point here. “Exercise by itself is a very tough way to lose weight,” says York Onnen, program director of the President’s Council on Physical Fitness and Sports. Still, exercise’s supporting role in weight reduction is vital. A study at the Boston University Medical Center of overweight police officers and other public employees confirmed that those who dieted without exercise regained almost all their old weight, while those who worked exercise into their daily routine maintained their new weight. If you have been sedentary (极少活动的) and decide to start walking one mile a day, the added exercise could burn an extra 100 calories daily. In a year’s time, assuming no increase in food intake, you could lose ten pounds. By increasing the distance of your walks gradually and making other dietary adjustments, you may lose even more weight. “Even exercise professionals concede half a point here” (Line 3, Para. 2) means “They （）”.
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船舶在正常航行中，如发电机故障造成跳电造成全船失电时，轮机员首先要做的是（）。
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患者，女，56岁，左下后牙自发疼痛1周，夜间因疼痛无法入睡3天，自服消炎药症状无明显好转。检查：左下5咬合面银汞充填物，边缘未探及龋损，龈缘稍有红肿，X线检查示左下5已行根管治疗，但根充不完善，根尖组织未发现明显异常。以下最有诊断价值的是（）