大学MOOC 专业外语（年佳琪测控171-2）(沈阳工程学院)1451637217 最新慕课完整章节测试答案
第一周周三1-2节
测验1
1、单选题：
It is conventional to take the current flow as the movement of .
选项：
A: negative charges
B: positive charges
C: any charge
D: protons
答案: 【 positive charges】
2、单选题：
Electric current is the time rate of charge,measured in .
选项：
A: watts
B: volts
C: joules
D: amperes
答案: 【 amperes】
3、单选题：
The energy required to move a unit charge through an element is .
选项：
A: current
B: power
C: voltage
D: potential
答案: 【 voltage】
4、单选题：
The plus (+) and minus (-) signs in an electric circuit diagram are used to define .
选项：
A: voltage polarity
B: current direction
C: power flow
D: absorbed power
答案: 【 voltage polarity】
5、单选题：
According to the passive sign convertion, if the power has a plus sign, power is by the element.
选项：
A: supplied
B: absorbed
C: generated
D: transferred
答案: 【 absorbed】
第一周周五1-2节
测验2
1、单选题：
An independent voltage source is a , which maintains a specified voltage between its terminals.
选项：
A: one-terminal element
B: two-terminal element
C: three-terminal element
D: four-terminal element
答案: 【 two-terminal element】
2、单选题：
Resistors are elements.
选项：
A: passitive
B: active
C: independent source
D: dependent source
答案: 【 passitive】
3、单选题：
An ideal dependent source is an elemenet in which the source quantity is controlled by another voltage or current.
选项：
A: passitve
B: active
C: independent
D: inductive
答案: 【 active】
4、单选题：
There are possible types of dependent sources.
选项：
A: two
B: three
C: four
D: five
答案: 【 four】
5、单选题：
For a voltge source , its terminal voltage is known but its must be determined by the external circuit connecting with it.
选项：
A: electromotive force
B: current
C: control coefficient
D: polarity
答案: 【 current】
第二周周三1-2节
测验3
1、单选题：
选项：
A: 
B: 
C: 
D: 
答案: 【 】
2、单选题：
选项：
A: 
B: 
C: 
D: 
答案: 【 】
3、单选题：
