第9题: [单项选择]要从选课表(学号、课程号、成绩)中查询选修了3门课程以上的学生学号,应使用的SELECT语句是______。 A. SELECT学号FROM选课表WHERECOUNT(*)>=3 B. SELECT学号FROM选课表HAVING COUNT(*)>=3 C. SELECT学号FROM选课表GROUPBY学号HAVINGCOUNT(*)>=3 D. SELECT学号FROM选课表GROUP BY学号WHERE COUNT(*)>=3 参考答案:C
第16题: [单项选择]Questions 56-58 refer to the following conversation. What are the speakers mainly discussing A. A problem caused by traffic jam B. The time to meet a new client C. The place to drop off the samples D. The way to get to the kindergarten 参考答案:A 答案解析:[解析] 56-58 M: Hi, honey. I’m stuck in traffic. There has apparently been a big accident up ahead.
【详解】 考查连词词义辨析和倒装句。句意:只有掌握了一种有效的法语学习方法,你才会在短时间内取得很大进步。 only if“只有”,unless“除非”,根据句意,空格一用only if引导条件状语从句,置于句首,主句用部分倒装,助动词will置于主语之前,根据“主将从现”原则,主句用一般将来时,综上,故选A。