第10题: [单项选择]Questions 11 to 18 are based on the conversation you have just heard. A. Preparing for bed. B. Walking toward the campus. C. Looking for a place to live. D. Inviting some friends to visit. 参考答案:C 答案解析:[听力原文] W:Here’s an ad for an apartment with two bedrooms.It’s near the campus and not too expensi
第21题: [单项选择]设X→Y是一个函数依赖,且对于任何经[*]都不成立,则称X→Y是一个 A. 完全函数依赖 B. 部分函数依赖 C. 平凡函数依赖 D. 非平凡函数依赖 参考答案:A 答案解析:网络技术的发展趋势是由面向终端向资源共事发展、由单一的数据通信网向综合业务数字通信网发展和由对等 通信方式向网站/浏览器方式发展。