单选
● MPEG-1 Audio定义了 （32） 个向下兼容的Layers，其中Layer （33） 的压缩方
法最复杂而压缩效果最好。
（32）
相关试题
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● Observe that for the programmer, as for the chef, the urgency of the patron（顾客） may govern the scheduled completion of the task, but it cannot govern the actual completion.
- An omelette（煎鸡蛋）, promised in two minutes, may appear to be progressing nicely. But when it has not set in two minutes, the customer has two choices—waits or eats it raw. Software customers have had （71） choice
- Clearly two solutions are needed. We need to develop and publicize productivity figures, bug-incidence figures, estimating rules, and so on. The whole profession can only profit from （75） such data. Until estimating is on a sounder basis,
- A. no
- B. the same
- C. other
- D. lots of （72）
- A.testers
- B. constructors
- C. managers
- D. architects （73）
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● HTML语言中，可使用 （68） 标签将脚本插入HTML 文档。
（68）
- A.
- B.
- A.