mooc答案类别订阅

第1~2单元测验

1、单选题：
​“翱翔系列”微小卫星项目是由来自（  ）的团队研制的。‍
选项：
A: 西北工业大学
B: 北京大学
C: 山东大学
D: 南京大学
答案: 【 西北工业大学】点我阅读全文

第一讲 “互联网+”时代的《文学写作》 单元测验

1、单选题：
‎文学创意写作的教学目标是 (      )‎
选项：
A: 培养学生母语学科的核心素养与应对职场的核心竞争力；
B: 掌握现代人基本的写作能力；
C: 培养大中学生的文学阅读能力；
D: 培养现代人的语言交际与沟通能力。
答案: 【 培养学生母语学科的核心素养与应对职场的核心竞争力；】点我阅读全文

第一讲单元测试

1、单选题：
​下列表述不正确的是？‍
选项：
A: 考古发现在殷商时期宫殿已经非常奢华了
B: 殷商时期的大量木质家具保留至今，为我们展开古典家具研究提供素材
C: 茵席就是在席的四周加上了花边、纹饰
D: 汉代基本沿袭前代“席地而坐”的方式
答案: 【 殷商时期的大量木质家具保留至今，为我们展开古典家具研究提供素材】点我阅读全文

第一次测试

1、单选题：

‏

‌选项：
A:
B:
C:
D:
答案: 【 】点我阅读全文

小测验

1、单选题：
‏《   》是中国古籍中最完整、最具有理论体系的建筑设计学经典，融人文与技术为一体，不仅标志着我国古代建筑技术已经发展到了一个新的水平，同时也是中国古代设计思想理论发展的重要界碑。‎
选项：
A: 营造法式
B: 齐民要术
C: 髹饰录
D: 农政全书
答案: 【 营造法式】点我阅读全文

单元测验

1、单选题：
SO策略是指：‌A.利用优势，把握机会   B.利用优势，克服威胁‌C.减少劣势，把握机会   D.减少劣势，克服威胁‌‍‌
选项：
A: A
B: B
C: C
D: D
答案: 【 A】点我阅读全文

第一讲单元测验

1、单选题：
‎东方式插花的代表国家‎‎‎‎‎
选项：
A: 中国和日本
B: 中国
C: 印度
D: 韩国
答案: 【 中国和日本】点我阅读全文

第一章单元测验

1、单选题：
​“营养”一词中“营”的意思是：‏​‏
选项：
A: 养生
B: 食物
C: 有益
D: 谋求
答案: 【 谋求】点我阅读全文

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

2. 煤的生成单元测试

1、单选题：
‎以下选项中哪种是植物转变成煤的最重要的有机组分？‎
选项：
A: 碳水化合物
B: 木质素
C: 脂类化合物
D: 蛋白质
答案: 【 木质素】点我阅读全文