【单选题】听力原文:WA Sam, when is this week's production meeting? MA It's at ten o'clock in the Green Willow Room on the second floor. The same place as last week. WA Right, but last week it was at eleven o'clock ...
【简答题】Keyword queries used in Web search are quite different from database queries. List key differences between the two, in terms of the way the queries are specified, and in terms of what is the result of...