2020 专业英语(湖南文理学院) 最新满分章节测试答案
本答案对应课程为:点我自动跳转查看
本课程起止时间为:2020-03-06到2020-07-15
本篇答案更新状态:已完结
2. Application of Ohm’s Law 第3讲 练习
1、 问题:单词翻译：rectifier
答案: 【整流器】
2、 问题:单词翻译：inverter
答案: 【逆变器】
3、 问题:单词翻译：filter
答案: 【逆变器】
4、 问题:单词翻译：power factor
答案: 【功率因数】
5、 问题:单词翻译：harmonics
答案: 【谐波】
6、 问题:单词翻译：恒压源
答案: 【stiff voltage source】
7、 问题:单词翻译：电流源型逆变器
答案: 【current-fed inverter】
8、 问题:单词翻译：isolation transformer
答案: 【隔离变压器】
9、 问题:单词翻译：lagging
答案: 【滞后】
10、 问题:单词翻译：duty ratio
答案: 【占空比】
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
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