【单选题】有学生表(学号,姓名,所在系,年龄),找出系内学生平均年龄高于全体学生平均年龄的系信息,正确的语句是______。
A.
SELECT所在系,AVG(年龄)FROM学生表 WHERE AVG(年龄)>(SELECT AVG(年龄)FEOM学生表)
B.
SELECT所在系,AVG(年龄)FROM学生表 WHERE AVG(年龄)>(SELECT AVG(年龄)FEOM学生表) GROUP BY所在系
C.
SELECT所在系,AVG(年龄)FROM学生表 GROUP BY所在系 HAVING AVG(年龄)>(SELECT AVG(年龄)FEOM学生表)
D.
SELECT所在系,AVG(年龄)FROM学生表 GROUP BY所在系 WHERE AVG(年龄)>(SELECT AVG(年龄)FEOM学生表)
【单选题】材料运杂费指材料从指定交货地点运至( )
D.
工地分仓库或相当于工地分仓库(材料堆放场)所发生的全部费用
【单选题】陈老先生因老年性痴呆入住在老年病房。一天深夜,护士发现陈老先生在走廓里溜达,他说在找他妻子。护士的做法应当是()
【简答题】查询“王阳”所在系的全体学生的学号,姓名 (符号用英文、字母用小写、不用空格) select 学号,姓名 from 学生 where ______=(select ______ from 学生 where 姓名='王阳')
【单选题】材料运杂费指材料从指定交货地点运至
B.
工地分仓库或相当于工地分仓库(材料堆放场)所发生的全部费用
【判断题】明朝嘉靖年间的倭寇得到了东南沿海的人民支持和拥护。
【简答题】Everyone needs friends. We all like to feel close to someone. It is nice to have a friend to talk, laugh and do things with. Sure, there are times when we need to be alone. We don’t always want people...
【简答题】Everyone needs friends. We all like to feel close to someone. It is nice to have a friend to talk, laugh and do things with. Surely, there are times when we need to be alone. We don't always want peop...