2024知到答案 Fundamentals of Forest Products Chemical Processing 林产化工专业英语 完整智慧树网课章节测试答案

第一章 单元测试

1、判断题：
Trace elements are essential to life.
选项：
A:对
B:错
答案: 【对】

2、判断题：
Elements with similar chemical properties generally fall into the same group in the periodic table.
选项：
A:错
B:对
答案: 【对】

3、判断题：
A pure substance always has the same physical and chemical properties and is either an element or a compound.
选项：
A:对
B:错
答案: 【对】

4、判断题：
Calcium oxide is an inorganic compounds.
选项：
A:对
B:错
答案: 【对】

5、判断题：
Any chemical species capable of binding to electron pairs is called a Lewis acid; any molecule that tends to donate an electron pair is referred to as a Lewis base.
选项：
A:对
B:错
答案: 【对】

6、判断题：
In either case, the position of the multiple bond is indicated by numbering from the end of the chain, starting at the end that will assign the lower number to the first carbon atom of the multiple bond.
选项：
A:错
B:对
答案: 【对】

7、判断题：
Ethers tend to be reactive, and low molecular mass ethers are often used as solvents.
选项：
A:对
B:错
答案: 【错】

8、判断题：
If one or both of the hydrogen atoms on the amide nitrogen atom are replaced by hydrocarbon groups, the structure is named as an N-substituted amide.
选项：
A:错
B:对
答案: 【对】

9、判断题：
By doing research in chemistry, we can find new cures for diseases as well as better chemicals to use in our natural environment.
选项：
A:错
B:对
答案: 【对】

第二章 单元测试

1、判断题：
We can eat or drink in laboratories
选项：
A:错
B:对
答案: 【错】

2、判断题：
If a liquid gets into your eyes, the eye should be washed immediately with clean running water for at least 10min.
选项：
A:对
B:错
答案: 【对】

3、判断题：
In the case of fire alarm, we need stop all of your ongoing work, turn off gas and electric devices.
选项：
A:错
B:对
答案: 【对】

4、判断题：
There is no need to label glass or flask filled with solution.
选项：
A:错
B:对
答案: 【错】

5、判断题：
If you work with flammable solvent, make sure there is no source of ignition close by.
选项：
A:对
B:错
答案: 【对】