更多“轨道式量规的测量方法，同圆法中，孔中心的距离和边缘的距离关系”相关的问题
教科书编写遵循的原则为（）
A.科学性、操作性、基础性、适用性 B.普遍性、思想性、基础性、适用性 C.科学性、思想性、基础性、适用性 D.科学性、思想性、强制性、适用性
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Passage Two Ask someone what they have done to help the environment recently and they will almost certainly mention recycling. Recycling in the home is very important of course. However, being forced to recycle often means we already have more material than we need. We are dealing with the results of that overconsumption in the greenest way possible, but it would be far better if we did not need to bring so much material home in the first place. The total amount of packaging increased by 12% between 1999 and 2005. It now makes up a third of a typical household’s waste in the UK. In many supermarkets nowadays food items are packaged twice with plastic and cardboard. Too much packaging is doing serious damage to the environment. The UK, for example, is running out of it for carrying this unnecessary waste. If such packaging is burnt, it gives off greenhouse gases which go on to cause the greenhouse effect. Recycling helps, but the process itself uses energy. The solution is not to produce such items in the first place. Food waste is a serious problem, too. Too many supermarkets encourage customers to buy more than they need. However, a few of them are coming round to the idea that this cannot continue, encouraging customers to reuse their plastic bags, for example. But this is not just about supermarkets. It is about all of us. We have learned to associate packaging with quality. We have learned to think that something unpackaged is of poor quality. This is especially true of food. But it is also applied to a wide range of consumer products, which often have far more packaging than necessary. There are signs of hope. As more Of us recycle, we are beginning to realize just how much unnecessary materials are collecting. We need to face the wastefulness of our consumer culture, but we have a mountain to climb.
A．Fighting wastefulness is difficult.B．Needless material is mostly recycled.C．People like collecting recyclable waste.D．The author is proud of their consumer cultur
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电气网络中，纯电抗网络是由（）组成的。
A.纯电感、电容
B.电感、电容、电阻
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在排水系统中，水封的作用就是利用弯曲管道增加局部阻力，防止管内气体室内。
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我们党的最大政治优势是（），党执政后的最大危险是脱离群众。
A.密切联系群众 B.理论联系实际 C.解放思想、实事求是 D.与时俱进
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化学变化是指既改变物质的形状，同时也使得物质的组成发生变化的过程。（）
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由于离子交换反应是可逆的，因此动态再生的效果比静态浸泡好。
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某化工生产设备安装工程项目，采用解体安装方法进行施工。某机电安装工程公司通过投标取得该项目的总承包施工任务。为了控制分包商的施工质量，业主分别与总承包方和分包方签订了工程施工总承包合同和分包合同。 ...该工程项目职业健康、安全与环境风险管理的基本原则有哪些
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尊享快件，延误处罚标准（），最高不超过300元，返还80%。
A.100元/票/天
B.50元/票/天
C.100元/票/频次
D.50元/票/频次
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（）应当根据操作规程，为得到相关授权的商业银行人员创建相应用户。
A、人民银行异议处理人员
B、商业银行管理员用户
C、征信服务中心工作人员
D、人民银行征信管理部门负责人
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老年人由于______或______，易形成痉挛性睑内翻。
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广义表A=( a,b,( c,d ),( e,( f,g ) ) ),则Tail( Tail( Head ( Tail( Tail( A ) ) ) ) )的值为:( )
A. (d) B. ( ) C. (g) D. d
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患者女性，39岁，主因“尿频，排尿刺痛3天，伴少量血尿1天”就诊。患者3天前无明显诱因出现尿频，夜尿3～5次，排尿时尿道有烧灼及刺痛感，伴有下腹部阵发性疼痛。患者无发热，无腰痛，饮食睡眠尚可，无肉眼血尿。查体：腹软，腹部未触及包块，下腹部耻骨上区轻度压痛，无反跳痛及肌紧张。双侧肾区及输尿管走行区无压痛。尿道外口充血，有少量黏液样分泌物。否认结核病史及个人冶游史。针对该病的治疗，下列描述正确的是（）
A . 根据病原菌的种类及对药物的敏感性有针对性地选用2或3种药物联合应用，疗效较好
B . 待症状完全消失、尿液检查正常、细菌培养阴性后方可停药
C . 应多饮水，以增加尿量
D . 可服用解痉药物以缓解尿频、尿急及尿痛症状
E . 性传播疾病所致的尿道炎应与配偶同时治疗，否则难以治愈
F . 尿道内灌注药物是有效的治疗方法
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A . 利润最大化B . 每股利润最大化C . 风险最小化D . 企业价值最大化
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