利用亮度方程式，可选择两个色差信号变换成色度信号后传输。彩电

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问题单项选择题

利用亮度方程式，可选择两个色差信号变换成色度信号后传输。彩电中常用传输的两个色差信号是（）

A.ER和EB

B.EB和EG

C.ER-Y和EB-Y

D.ER-Y和EG-Y

答案

参考答案：C

解答题

选择题

选择与句子画线部分意思相同或相近的词或短语。

1. Debbie will have fun looking for the Easter eggs. [ ]

A. enjoy

B. dislike

C. try

D. keep

2. Finally, we went home together. [ ]

A. At least

B. At last

C. At most

D. At first

3. To rise early is a good habit.[ ]

A. go to bed

B. go home

C. put up

D. get up

4. The snow melts quickly in the warm sun. [ ]

A. becomes solid

B. becomes cold

C. becomes liquid

D. becomes hot

5. We won't see any flowers until May.[ ]

A. We will see flowers only in May.

B. We won't see flowers after May.

C. We will see flowers before May.

D. We will see flowers when May comes.