35kV及以下的铜芯电缆的接地线的截面积为()mm2。A.10 B.16 C.25

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问题:

35kV及以下的铜芯电缆的接地线的截面积为()mm2。

A.10

B.16

C.25

D.35

考点:线路运行与检修专业考试配电线路(技师)配电线路(技师)题库
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生石灰可作食品包装袋内的干燥剂,其干燥的原理是什么(用化学方程式表示)______用过一段时间后,干燥剂中的物质最多有______种.有些食品包装袋内的干燥剂是铁粉,铁粉失效后会变成______色;铁粉为什么比生石灰更能延长食品保质期?

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阅读下面的文字,完成12-14题。常识教育牵涉以下重大命题:培养健全人格,促进人的全面发展;传承人类社会的基本核心价值观,塑造基本社会共识;传承人类优秀思想文化学术;在传承的基础上进行文化创新和促进社会进步。 换言之,常识教育的命意和专业化教育不一样,后者主要措意于培养专业技术人才和职业个体,乃至于螺丝钉似的现代“部件人”(工具主义个体),或为学术而学术,为科技而科技,专意在促进专业学术发展和科技进步(有时甚至可能忽略对科学技术的价值判断和伦理反思),常识教育则有着眼于人的全面发展,培育具有独立思考能力和道德判断的自由个体,以及随之而来的普遍的人文精神氛围和社会公共生活,抵御知识的异化,人的异化,制度的异化与社会的异化,促进社会的共同福祉。 另外,专业化教育往往着眼于知识的精深,常识教育则着眼于知识的基本、根本与全面,一为专家之学,一为通人之学,但这里的通人之学又不同于中国古代“通者千篇以为,万卷以下,通人也”的通儒硕学,或所谓的“大通人”(仍是相对而言),这显然只能要求极少一部分人。此处所谓的通人并非意味着博闻广识,无所不通,事实上以为类有限的时间精力和智力水平而言,不可能做到“天上地下,无所不知”的地步,而在于对涉及人与自己、与他人、与社会、与世界之间关系的基本常识的了解,尤其是涉及个体心灵生活和现代公共生活的最基本相关知识的掌握。换言之,常识教育或通识教育永远是与人类知识水平和智力水平相对而言的,是对最核心、最重要的基本常识的教育与掌握。就此而言,常识教育或通人教育就是人的教育,旨在立人,培养基本的人,或所谓的“小通人”。专家亦必须具备“小通人”的相关常识,即先成为基本自由个体,然后才是专家和成就专家之学。“大通人”则不敢苛求所有个体,而且“大通人”亦可或亦段有一二专家之学,而有专家之成就业绩。专家之学不必苛求所有个体,“小通人”之学却须人人具备,这便只能通过教育,亦即普及的常识教育来实现。一个国家和社会的教育素质和水平,便决定了一个国家和社会的人及其生活的整体品质和水平。常识教育水平高,则人民安居乐业,自由幸福指数高,社会稳定,国家繁荣昌盛。

下列关于“常识教育”的表述,不符合原文意思的一项是( )

A.常识教育是培养自由个体、促进人的全面发展和社会共同进步的通人教育。

B.常识教育关涉到文化传承创新、个体心灵生活和现代社会公共生活等问题

C.常识教育要求掌握人类最核心和最重要的知识,是抵御知识的异化的教育。

D.常识教育是伴随人类知识水平和智力水珠 变化而不断变化的普及性教育。

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techniques , but he admitted there would be difficulties in meeting his goal .

“ For example , if you run out of ink while printing on paper , you will throw that paper away . But you cannot throw half-completed buildings away if your material gets stuck , ” he said . Although the printed house is not available to visit , there is a chance for people in Shanghai to see items printed in 3D.

The Belgium-based company Materialise NV held a 3D printing exhibition in Shanghai that started in late 2012 and ended in the middle of 2013 . The company is eager to show Asia what is possible with 3D printing .

“ All the pieces shown here are what cannot be made through traditional techniques . A good example of this customization is hearing aids . More than 10 million people already use 3D printed hearing aids, all made according to the size of their ears , ” said Wim Michiels , executive vice-president at Materialise NV .

“ You can produce anything whenever and wherever you like . You don’t need to set up production lines for pieces that only need a limited amount of products . Setting up a production line is a lot of work . It takes a long time and is very expensive for a limited number of pieces , ” said Michiels .

Kim Francois , managing director of Materialise China , said their European and American clients have already taken the next step toward additive manufacturing with small series production such as hearing aids .

小题1:What is mainly talked about in the text ?

A. The development of 3D printing .

B. A 3D printing show in Shanghai .

C. Varieties of items printed in 3D .

D. The company Materialise NV .

小题2:According to Behrokh Khoshnevis , what is the main difficulty in printing buildings ?

A.Time .

B.Technique .

C.Space .

D.Material .小题3:The example of 3D printed hearing aids was mentioned to show that ______________ .

A.these items used to be impossible to make

B.3D printing has a large market share

C.3D hearing aids help people hear better

D.people need different sized hearing aids小题4:According to the text , 3D printing is suitable for ___________ .

A.mass production

B.making small items

C.small series production

D.reducing production costs

题型:单项选择题

我国规定肉制品中硝酸盐、亚硝酸盐的最大使用量(g/kg)分别为()

A.1.5,0.5

B.1.0,0.1

C.0.5,0.15

D.0.15,0.15

E.0.1,0.05

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供受文者使用的具有法定效用的正式文本,格式规范并具备各种生效标志的稿本,称作( )。

A.草稿

B.定稿

C.正本

D.副本

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