2. 计算机
  3. By using MP3，a 600M-byte music CD can be (1)_____to 50M bytes or less．It can be streamed(downloaded in chunks)so that you can b

By using MP3，a 600M-byte music CD can be (1)_____to 50M bytes or less．It can be streamed(downloaded in chunks)so that you can b

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问题 By using MP3，a 600M-byte music CD can be  (1)_____to 50M bytes or less．It can be streamed(downloaded in chunks)so that you can begin listening to the opening bars while the  (2)_____ ofthe life arrives in the background。And most important，MP3 music files retain good listening  (3)_____ that  (4)______compression schemes lacked．That  (5)_____ of features makes accessing anddistributing music on the Web practical for the first time．
(5)_____
A．addition
B．combination
C．difference
D．Condition
选项 A、 
B、 
C、 
D、 
答案B
解析 如果使用MP3，600MB的音乐CD能被压缩到50MB或更小。它能流式播放(分块下载)，使你一开始就能听，同时文件其余的(rest)部分在后台继续下载。尤其重要的是，MP3音乐具有较好的音质(quality)，这种音质前期(earlier)压缩方案欠缺。将这些特性结合(combination)起来，使在Web上存取和发布音乐首次得以实现
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