问题
名词解释
自适应差分脉冲编码
答案
参考答案：
是在差分脉冲编码方法上的进一步改进，通过调整量化步长，对不同频段所设置的量化字长不同，使数据得到进一步的压缩。
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自适应差分脉冲编码
参考答案：
是在差分脉冲编码方法上的进一步改进，通过调整量化步长，对不同频段所设置的量化字长不同，使数据得到进一步的压缩。
| 根据短文内容判断正误，对的在题前括号内写“T”，错的 写“F”。 | |
speaks English very well. We like his lessons very much. His home is near the school. Sometimes Mr. Black walks to his home. He has two little sons. They look the same. They often wear the same clothes. He loves to see them and play with them. Mr. Black calls the two boys Da Mao and Xiao Mao. ( ) 1. Mr. Black is our English teacher. ( ) 2. Mr. Black is very short. ( ) 3. We like his lessons. ( ) 4. Da Mao and Xiao Mao are two sisters. ( ) 5. Mr. Black's home is far from our school. |