第8题: [单项选择]What is the man trying to do A. Plan a charity event B. Get volunteers for a race C. Announce the winners D. Collect donations 参考答案:B 答案解析:[听力原文] 41-43 M: We’re signing people up for the office charity race. Do you want to participate i
第18题: [单项选择]用SQL语言描述“在教师表中查找男教师的全部信息”,以下描述正确的是 A. SELECT FROM 教师表IF(性别=‘男’) B. SELECT性别FROM教师表IF(性别=‘男’) C. SELECT * FROM教师表WHERE(性别=‘男’) D. SELECT * FROM性别WHERE(性别=‘男’) 参考答案:C 答案解析:解析:该段语法为SELECT*|<字段列表>FROM<表名>WHERE<条件表达式>。