大学MOOC 材料科技英语(武汉理工大学)1462668190 最新慕课完整章节测试答案

随堂测验

1、单选题：
‍单选题：A material consists of particles with a certain composition, and can be （?） into products having shapes and colors.​
选项：
A: machined
B: pressed
C: processed
D: sintered
答案: 【 processed】

2、单选题：
‏单选题：（?） means converting waste materials into new materials and objects to save energy and lower greenhouse gas emissions.‍
选项：
A: Disposal
B: Recycling
C: Landfilling
D: Reuse
答案: 【 Recycling】

3、单选题：
‌单选题：Metallic materials are （?） substances that are composed of one or more metallic elements and may also contain some nonmetallic elements.‍
选项：
A: chemical
B: composite
C: inorganic
D: organic
答案: 【 inorganic】

4、单选题：
‌单选题：Most （?） materials consist of long molecular chains or networks that are usually based on organics (carbon-containing precursors).‌
选项：
A: ceramic
B: composite
C: metallic
D: polymeric
答案: 【 polymeric】

5、多选题：
‍多选题：科技英语语法的共性，包括‍
选项：
A: 多使用被动语态
B: 大量使用代词
C: 多使用后置定语
D: 多使用复合句和长句
答案: 【 多使用被动语态;
多使用后置定语;
多使用复合句和长句】

6、多选题：
‌多选题：The four main aspects concerned in materials science and engineering are composition and structure, and‎
选项：
A: synthesis and manufacture processing
B: physics and chemistry
C: properties
D: applications
答案: 【 synthesis and manufacture processing;
properties;
applications】

单元测验1

1、单选题：
‏单选题：carbohydrate的意思是‌
选项：
A: 碳水化合物
B: 碳化合物
C: 碳氢化物
D: 含碳物
答案: 【 碳水化合物】

2、单选题：
​单选题：The term specific strength means‍
选项：
A: strength to weight ratio
B: special strength
C: strength to density ratio
D: strength to volume ratio
答案: 【 strength to weight ratio】

3、单选题：
‏单选题：In a solid solution, solute atoms substitute for lattice atoms. The type of this solid solution is‌
选项：
A: substitutional solid solution
B: interstitial solid solution
C: solid solution
D: none
答案: 【 substitutional solid solution】

4、单选题：
‏单选题：A silicon crystal doped with boron creates a p-type semiconductor. This doping is known as‏
选项：
A: acceptor doping
B: donor doping
C: adding impurities
D: none
答案: 【 acceptor doping】

5、单选题：
‌单选题：Ferroelectricity of donor-doped barium titanate ceramics is lost at a certain temperature, and this temperature is called​
选项：
A: the Curie temperature
B: the critical temperature
C: the glass transition temperature
D: the melting point
答案: 【 the Curie temperature】

6、单选题：
​单选题：PTC ceramics have a （?） resistance at ordinary temperatures.‌
选项：
A: low
B: high
C: constant
D: varying
答案: 【 low】

7、单选题：
‌单选题：Titanium alloys are virtually （?） to air, marine, and a variety of