2022大学慕课答案 专业英语（电子信息）(郑州工程技术学院) 最新大学MOOC满分章节测试答案
本答案对应课程为:点我自动跳转查看
本课程起止时间为:2020-02-17到2020-06-30
本篇答案更新状态:已完结
3. NAND GATE 第一单元测验
1、 问题:What is an analog signal?
选项：
A:Analog signal is a continuous values
B:Analog signal is a discrete values
C: Analog signal is sometimes continuous, sometimes discrete
D:
答案: 【Analog signal is a continuous values】
2、 问题:How do we hear the amplified sound ?
选项：
A:Sound waves are picked up by a speaker and converted to a small analog voltage called the audio signal, then the voltage are sent to the microphone.
B:Sound waves are picked up by a microphone and converted to a small analog voltage called the audio signal, then the voltage are sent to the speaker .
C:Sound waves are picked up by a microphone and converted to a small digital voltage called the audio signal, then the digital voltage are sent to the speaker
D:
答案: 【Sound waves are picked up by a microphone and converted to a small analog voltage called the audio signal, then the voltage are sent to the speaker .】
3、 问题:Which of the following are not correct
选项：
A:Audio signal is an analog signal.
B:Most things that can be measured quantitatively occur in nature in analog form.
C:An analog quantity is one having continuous values.
D:The air temperature is a continuous value.
答案: 【The air temperature is a continuous value.】
4、 问题:In series circuit ,the current flowing through each element is ( )
选项：
A:of the same value
B: proportional to resistance
C:inversely proportional to resistance
D:
答案: 【of the same value】
5、 问题:In which circuit all devices could be controlled by one switch ?
选项：
A:parallel circuit
B:series circuit
C:series parallel circuit
D:
答案: 【series circuit 】
6、 问题:Which is the characteristic of parallel circuits?
选项：
A:same voltage
B: different voltage
C:same current
D:
答案: 【same voltage 】
7、 问题:The terminal voltage of all parallel components is of （ ）
选项：
A:the same voltage.
B:the different voltage
C:the same current
D:the different current
答案: 【the same voltage.】
8、 问题:what is IR drop?
选项：
A: the product of current and voltage
B:infrared radiation
C:investor relation
D:
答案: 【 the product of current and voltage】
9、 问题:which is the right expression for C=A×B
选项：
A:C is the sum of A and B
B:C is equal to the product of A and B
C:
D:
答案: 【C is equal to the product of A and B】
10、 问题:The result of A÷B is called ( )
选项：
A:sum
B:difference
C:quotient
D:product
答案: 【quotient】
6 The Package Technology of IC 第二单元测验
1、 问题:The first integrated circuit was invented by ( )
选项：
A:Thomas Edison
B: Jack Kilby and Robert Noyce
C: Newton
D:Albert Einstein
答案: 【 Jack Kilby and Robert Noyce】
2、 问题:Wafer preparation excludes
选项：
A:cleaning
B:layering
C:probing
D: doping
答案: 【 doping】
3、 问题:The process of photolithography excludes ( )
选项：
A:coating
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