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搜题/搜资源
【判断题】【消耗次数:1】
D/A转换器的作用就是将数字量信号转化成模拟量信号。
①
正确
②
错误
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相关题目
【判断题】
A/D转换器的作用就是将数字量信号转化成模拟量信号。
①
正确
②
错误
查看完整题目与答案
【判断题】
A/D转换器的任务是把模拟量转换为数字量。
①
正确
②
错误
查看完整题目与答案
【判断题】
能将模拟信号转换成数字信号的电路,称为D/A转换器,简称DAC。
①
正确
②
错误
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【判断题】
光电式传感器就是将光信号转化成电信号的一种器件,简称光电器件。
①
正确
②
错误
查看完整题目与答案
【单选题】
将数字信号转换为模拟信号的过程称为( )。
①
解调
②
调制
③
加密
④
解密
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【单选题】
IPCamera的工作原理是图像信号经过镜头,由图像传感器转化为电信号,再由何种传感器将模拟电信号转换为数字电信号?
①
A/D传感器
②
D/A传感器
③
图像传感器
④
光敏传感器
查看完整题目与答案
【单选题】
生产过程中连续变化的模拟信号,通过( )、变送器转换程标准模拟量电压或电流信号。
①
存储器
②
传感器
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【判断题】
调制技术是将模拟信号转换成数字信号。
①
正确
②
错误
查看完整题目与答案
【单选题】
A/D转换器的作用是( )。
①
模拟量转换成数字量
②
数字量转换成模拟量
③
数字量转换成数字量
④
模拟量转换成模拟量
查看完整题目与答案
【单选题】
D/A转换器的作用是( )。
①
模拟量转换成数字量
②
数字量转换成模拟量
③
数字量转换成数字量
④
模拟量转换成模拟量
查看完整题目与答案
随机题目
【判断题】
Mark Twain, one of the greatest 19th century American writers, is well known for his international theme.
①
正确
②
错误
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【判断题】
As a realist, Mark Twain concerned particularly about the local character of a region, which came about as “Local Colorism”.
①
正确
②
错误
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【判断题】
The first American writer of local color to achieve wide popularity was Bret Harte.
①
正确
②
错误
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【单选题】
The end of ______ marked the beginning of The Gilded Age, an age of excess and extremes, of decline and progress, of poverty and dazzling wealth, of gloom and hope.
①
the American War of Independence
②
World War I
③
World War II
④
The Civil War
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【单选题】
In Henry James’ The Portrait of A Lady, the author tries to portray the young woman as an embodiment of ______.
①
the force of convention
②
the free spirit of the New World
③
the decline of aristocracy
④
the corruption of the newly rich
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【单选题】
In his masterpiece The Portrait of A Lady, Henry James _________.
①
incarnates the clash between the Old World and the New in the life journey of an American girl in a European cultural environment
②
tells a story about a young and innocent American confronting the complexity of the European life as well as the American society
③
describes a young American girl who gets “killed” by the winter in Rome
④
tells about some Europeans who learn with difficulty to adapt themselves to the American life
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【单选题】
At the middle of 19th century, America witnessed a cultural flowering which is called “_____”.
①
the English Renaissance
②
the Second Renaissance
③
the American Renaissance
④
the Salem Renaissance
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【单选题】
In Dreiser’s Sister Carrie, which of the following statements is NOT true about the characters in the story?
①
At the end of the story, Hurstwood’sfamily are enjoying a happy life without him.
②
Being unable to make a decent living, Hurstwood at last commits suicide.
③
In spite of her success as a famous actress Carrie does not feel happy.
④
Carrie becomes rich and helps Hurstwood out of his difficulty.
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【单选题】
Which of the following is not written by Henry James?
①
Daisy Miller
②
The Wings of the Dove
③
The American
④
Self-Reliance
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【单选题】
Stylistically, Henry James’ fiction is characterized by ________.
①
highly refined language
②
ordinary American speech
③
short, clear sentences
④
abundance of local images
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