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鉴别先天性喉蹼与先天性喉喘鸣的要点是（）
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《太阳照在桑干河上》描写了华北地区（）开展的土改运动。
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苯妥英钠与下述哪些药物合用时可降低其疗效（）
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新时期农民负担监管工作范围，重点包括（）。
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对于各种形状复杂、批量大、精度要求一般的零件可采用（）来划线。
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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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高等教育是通过培养高级专门人才对社会起作用的，向社会培养高质量人才，以促进社会和人的发展，这是高等教育的主要功能。
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以下是痛痛病患者的典型症状和体征，除了（）
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发布在指定的医学杂志上仅宣传药品名称的处方药广告（）
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解释油膜振荡？