第3题:[单选题]Which of the following statements is correct according to this passage? A.Mr. Barge is not fond of the music. B.Mr. Barge likes music, but he doesn’t like the noise. C.Mr. Barge often goes out in the evenings to give music lessons. D.Mr. Barge expects a reply from Mrs. Huggett. 参考答案:D
第5题: [单项选择]VCD使用的压缩编码的标准是______。 A. MPEG-1 B. MPEG-2 C. MPEG-4 D. MPEG-7 参考答案:A 答案解析:[解析] 现在在DVD中通常采用MPEG-2压缩标准,VCD普遍采用MPEG-1标准;
MPEG-1是针对传输速率为1Mbit/s到1.5Mbit/s的普通电视质量的视频信号的压缩。