第27题: [单项选择]在RDBMS层次中,位于应用层之下的是哪一层 A. 数据存取层 B. 语言翻译处理层 C. 操作系统 D. 数据存储层 参考答案:B 答案解析:[命题目的] 本题主要考查了DBMS的层次结构。
[解题要点] RDBMS的层次结构由上到下依次是:应用层、语言翻译处理层、数据存取层、数据存储层。
[考点链接] 掌握数据库的设计过程。
第36题: [单项选择]Passage Three Questions 32 to 35 are based on the passage you have just heard. A. Collecting early stamps. B. Selling false signature. C. Making fast food. D. Writing detective stories. 参考答案:B 答案解析:[听力原文]32-35 Robert was so good at his profession that he was able to make his living for 20 y