创建自己的小题库
搜索
【填空题】
“四艺”是指天文、算术、____和音乐这四门课程。
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
反馈
收藏
举报参考答案：
举一反三
【单选题】在关系Student(学号，姓名，系名，课程号，成绩)中，查询至少选修了四门课程的学生学号、姓名及平均成绩的SElECT语句应该是： SELECT学号，姓名，AVC((254))AS平均成绩 FROM Student CROUP BY学号 HAVING (255)
A.
成绩
B.
姓名
C.
系名
D.
课程号
【单选题】A. As is known, we set great store by the trade relationship with the third world countries.B. We’ve never had any difficulties with our Chinese partners, and we ’ d like to make as many new contacts ...
A.
By leaving out some necessary information.
B.
By providing more information than needed.
C.
By using their body language.
D.
By telling some unbelievable lies.
相关题目：
【单选题】在关系Student(学号，姓名，系名，课程号，成绩)中，查询至少选修了四门课程的学生学号、姓名及平均成绩的SElECT语句应该是： SELECT学号，姓名，AVC((254))AS平均成绩 FROM Student CROUP BY学号 HAVING (255)
A.
成绩
B.
姓名
C.
系名
D.
课程号
【单选题】A. As is known, we set great store by the trade relationship with the third world countries.B. We’ve never had any difficulties with our Chinese partners, and we ’ d like to make as many new contacts ...
A.
By leaving out some necessary information.
B.
By providing more information than needed.
C.
By using their body language.
D.
By telling some unbelievable lies.
参考解析：
AI解析
重新生成
题目纠错 0
发布
