【判断题】彩色电视中解码器的作用是将彩色全电视信号转化为三基色电信号。
【简答题】Part B Below are two graphs showing the changes in Chinese outbound travel between 1994 and 2004 and the destination of Chinese outbound travel in 2004. Write an essay of about 120 words that conveys ...
【判断题】解码器的作用是将彩色全电视信号还原成红、绿、蓝三种基色信号ER、EG、EB及伴音信号。
【单选题】What's the controlling idea in the sentence? 6. There are several enjoyable ways to travel between the US and Queretaro.
A.
several enjoyable ways
B.
to travel between the US and Queretaro
【单选题】What is the relationship between meteors and meteorites?
A.
When meteors travel through space and arrive in the earth, all of them become meteorites.
B.
When meteors travel through space and land on the earth, swarms of meteor particles are called meteorites.
C.
When meteors travel through space and arrive in Earth, only very large meteors become meteorites.
D.
When meteors travel through space and land on the earth, thousands of meteors become meteorites.
【判断题】彩色电视中解码器的作用是彩色全电视信号转化为三基色电信号。
【判断题】信源解码器的作用是将收到的数字信号转换为模拟信号。