网课答案标签存档

第一章 世界的物质性及发展规律

第一章测验

1、单选题：
‏物质和意识的对立只有在非常有限的范围内才有绝对的意义，超过这个范围便是相对的了，这个范围是指（ ）‍
选项：
A: 物质和意识何者为第一性
B: 物质和意识是否具有统一性
C: 物质和意识何者更为重要
D: 物质和意识何者与社会生活的关系更密切
答案: 【 物质和意识何者为第一性】点我阅读全文

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第一章 经济法基础理论

法人一节测试

1、单选题：
‎代表法人的自然人称为（      ）。‍
选项：
A: 法人代表
B: 法定代表人
C: 法人
D: 代理人
答案: 【 法定代表人】点我阅读全文

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第一章环境规划与管理概述

第一章单元测验

1、单选题：
‎1979年国家颁布了《中华人民共和国环境保护法（试行）》，( )实施了新的《环境保护法》​
选项：
A:  2015年1月1日
B: 2014年4月24日
C:  2015年4月24日
D: 2014年1月24日
答案: 【  2015年1月1日】点我阅读全文

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第一讲 课程介绍

第一讲单元测验题

1、单选题：
​下列不属于本门《公司金融学》讨论内容的是‍​‍
选项：
A: 融资决策
B: 投资决策
C: 组织决策
D: 分配决策
答案: 【 组织决策】点我阅读全文

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第0章 绪论

传感器的概念及基本构成——测验

1、单选题：
‏以下哪些是未来传感器的发展趋势？​
选项：
A: 发现和开发新材、新功能
B: 传感器的多功能集成化和微型化
C: 传感器的数字化、智能化和网络化
D: 以上都是
答案: 【 以上都是】点我阅读全文

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第三周

第一章测验题

1、单选题：
目前我国采用的高程基准是（ ）‍‌‍
选项：
A: A 1956年黄海高程
B: B 1965年黄海高程
C:  C 1985年黄海高程  
D: D 1995年黄海高程
答案: 【  C 1985年黄海高程  】点我阅读全文

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第一章小说导论

第一章单元测试

1、单选题：
‍下列不属于文学艺术的三种基本功能的是（    ）。‍
选项：
A: 认知功能
B: 审美功能
C: 教育功能
D: 模仿功能
答案: 【 模仿功能】点我阅读全文

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第一章C语言概述

C语言概述

1、单选题：
‌C语言程序从（ ） 开始执行。‏
选项：
A: 程序中第一条可执行语句
B: 程序中第一个函数
C: 程序中的main函数
D: 包含文件中的第一个函数
答案: 【 程序中的main函数】点我阅读全文

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Lesson2

Scanning

1、单选题：
‌Read the passage "The Discovery of X-rays" quickly and choose the paragraph(s) which contain(s) the answer(s). You may choose more than one answer for question 3. ‌‌‌The Discovery of X-rays‌‌ ‌Par. 1 Except for a brief description of the Compton effect, and a few other remarks, we have postponed the discussion of X-rays until the present chapter because it is particularly convenient to treat X-ray spectra after treating optical spectra. Although this ordering may have given the reader a distorted impression of the historical importance of X-rays, this impression will be corrected shortly as we describe the crucial role played by X-rays in the development of modern physics.‌Par. 2 X-rays were discovered in 1895 by Roentgen while studying the phenomena of gaseous discharge. Using a cathode ray tube with a high voltage of several tens of kilovolts, he noticed that salts of barium would fluoresce when brought near the tube, although nothing visible was emitted by the tube. This effect persisted when the tube was wrapped with a layer of black cardboard. Roentgen soon established that the agency responsible for the fluorescence originated at the point at which the stream of energetic electrons struck the glass wall of the tube. Because of its unknown nature, he gave this agency the name X-rays. He found that X-rays could manifest themselves by darkening wrapped photographic plates, discharging charged electroscopes, as well as by causing fluorescence in a number of different substances. He also found that X-rays can penetrate considerable thicknesses of materials of low atomic number, whereas substances of high atomic number are relatively opaque. Roentgen took the first steps in identifying the nature of X-rays by using a system of slits to show that (1) they travel in straight lines, and that (2) they are uncharged, because they are not deflected by electric or magnetic fields.‌Par. 3 The discovery of X-rays aroused the interest of all physicists, and many joined in the investigation of their properties. In 1899 Haga and Wind performed a single slit diffraction experiment with X-rays which showed that (3) X-rays are a wave motion phenomenon, and, from the size of the diffraction pattern, their wavelength could be estimated to be 10-8 cm. In 1906 Barkla proved that (4) the waves are transverse by showing that they can be polarized by scattering from many materials.‌Par. 4 There is, of course, no longer anything unknown about the nature of X-rays. They are electromagnetic radiation of exactly the same nature as visible light, except that their wavelength is several orders of magnitude shorter. This conclusion follows from comparing properties 1 through 4 with the similar properties of visible light, but it was actually postulated by Thomson several years before all these properties were known. Thomson argued that X-rays are electromagnetic radiation because such radiation would be expected to be emitted from the point at which the electrons strike the wall of a cathode ray tube. At this point, the electrons suffer very violent accelerations in coming to a stop and, according to classical electromagnetic theory, all accelerated charged particles emit electromagnetic radiations. We shall see later that this explanation of the production of X-rays is at least partially correct.‌Par. 5 In common with other electromagnetic radiations, X-rays exhibit particle-like aspects as well as wave-like aspects. The reader will recall that the Compton effect, which is one of the most convincing demonstrations of the existence of quanta, was originally observed with electromagnetic radiation in the X-ray region of wavelengths.‌‌‌‌When were X-rays discovered?‌
选项：
A: Par. 1
B: Par. 2
C: Par. 3
D: Par. 4
E: Par. 5
答案: 【 Par. 2】点我阅读全文

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第一章普通话概说

口语训练的方法

1、判断题：
‍要想提高口语水平一定要做到平时多训练。‏
选项：
A: 正确
B: 错误
答案: 【 正确】点我阅读全文

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