大学MOOC 材料科学与工程专业英语(常州大学)1453182201 最新慕课完整章节测试答案

选择题和判断题

1、单选题：
​下面哪种材料不属于先进材料？‌
选项：
A: Graphene
B: Nanomaterial
C: Steel
D: Semiconductor
答案: 【 Steel】

2、多选题：
​材料可分为哪些类？‌
选项：
A: Metals
B: Ceramics
C: Polymers
D: Composites
答案: 【 Metals;
Ceramics;
Polymers;
Composites】

3、多选题：
‍研究材料时应关注以下哪个因素？‎
选项：
A: Microstructure
B: Properties
C: Synthesis
D: Performance
答案: 【 Microstructure;
Properties;
Synthesis;
Performance】

4、判断题：
‌不同材料里灌装的可乐喝起来一样，所以材料没区别。‎
选项：
A: 正确
B: 错误
答案: 【 错误】

5、判断题：
‏Property和Performance内涵一样。‏
选项：
A: 正确
B: 错误
答案: 【 错误】

第二章单元测试

1、单选题：
‌按照下面电子层的排列顺序，电子的能量逐渐升高。‍
选项：
A: L、M、K、N、O
B: M、N、K、L、O
C: K、L、M、N、O
D: O、N、M、L、K
答案: 【 K、L、M、N、O】

2、单选题：
‎核外电子排布的轨道能量，下面错误的是？‌
选项：
A: 2s<3s
B: 3d<4s
C: 3d<4d
D: 3s<3p
答案: 【 3d<4s】

3、单选题：
​Which of the following is wrong?‍
选项：
A: Covalent bond is a kind of chemical bond formed between atoms by sharing electron pairs.
B: Ionic bond is formed between anions and cations by electrostatic action.
C: Metallic bond is the strong interaction force between metal ions relying on free electrons.
D: Covalent bonds exist in NaCl.
答案: 【 Covalent bonds exist in NaCl.】

4、多选题：
‎What are the characteristics of the same main group in the periodic table?​
选项：
A: The outermost layers have the same number of electron.
B: They have the similar chemical properties.
C: The number of electron layers from top to bottom gradually increases. 
D: The atomic radius from top to bottom gradually increases.
答案: 【 The outermost layers have the same number of electron.;
They have the similar chemical properties.;
The number of electron layers from top to bottom gradually increases. ;
The atomic radius from top to bottom gradually increases.】

5、多选题：
‏Which of the following elements are alkali metals?‌
选项：
A: K
B: Na
C: Cs 
D: In
答案: 【 K;
Na;
Cs 】

6、多选题：
‍Electrons in atoms would follow these principles.‌
选项：
A: Pauli exclusion
B: lowest energy
C: Hund rule
D: Hooke law
答案: 【 Pauli exclusion;
lowest energy;
Hund rule】

7、多选题：
‍Which of the following bonds can be treated as weak bonds or secondary bonds? ‏
选项：
A: dipole–dipole interactions
B: the London dispersion force
C: hydrogen bonding 
D: metallic bonding
答案: 【 dipole–dipole interactions;
the London dispersion force;
hydrogen bonding 】

8、判断题：
‌Atoms are made from a nucleus of protons and neutrons and a cloud of electrons.‌
选项：
A: 正确
B: 错误
答案: 【 正确】

9、判断题：
​The Pauli exclusion principle is the quantum mechanical principle which states that two or more identical fermions (particles with half-integer spin) can occupy the same quantum state within a quantum system simultaneously.‍
选项：
A: 正确
B: 错误
答案: 【 错误】

10、判断题：
‍When voltage is applied to an ionic material, entire ions must move to cause a current to flow, therefore, the electrical conductivity is very good.‍
选项：
A: 正确
B: 错误
答案: 【 错误】