问题 单项选择题

话音信号的数字化方法很多,常用的有()以及某些改进的方案。

A.脉冲编码调制(PCM)

B.增量调制(DM)

C.线性预测编码(LPC)

D.以上都对

答案

参考答案:D

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       These fat women are Matryoshka from Russia. Children love them very much in the world. They are a kind

of popular (受欢迎) dolls. They wear a smile on their red faces. They have some small red mouths. They wear

special (特殊的) Russia clothes. They look beautiful and colourful. They are hollow (空的) in the middle.

draw, them, peopl, pictures, on, many, nice. People can put five small dolls one after another into a big

tummy (肚子). They are children's good friends. You can see and buy them in the streets of Russia or China.

1. What is the meaning (意思) of the word "Russia" in Chinese (中文)? 

                                                                                                         .

2. How many small dolls can people put into a big tummy? 

                                                                                                         

3. Where can you see and buy Matryoshka?

                                                                                                         .

4. 把文中划线部分翻译成句子。

    __________________________________________________________.

5. 将黑体字部分连词成句。

    __________________________________________________________.

名词解释