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题目：
选择题
文献排架的依据（ ）。
- A. 书次号
- B. 索书号
- C. 辅助区分号
- D. 分类号
答案：
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正循环回转法成孔，泥浆从钻杆打入孔内，钻渣从什么位置排出()。
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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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益母草有兴奋子宫，增强其收缩的作用。
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请举出植物体内同化物被再分配再利用的几个例子。
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下列叙述中，属于残疾一级预防的是（）。
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NGN的网络体系架构分为（）。
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我行保险资产托管服务的对象有（）。
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食品强化通常有弥补营养缺陷、补充加工损失等几种目的（）
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推理不能帮助人们获取正确的知识。
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需手术治疗的脑脊液鼻漏有（）。