查询选修了课程号为“C1”的学生的姓名和年龄，若用下列SQL的SELECT语句表达时，错误的是( )。 A: SELECT SNAME，AGE FROM S WHERE B: S#=(SELECT S C: S#FROM SC WHERE D: C#='C1') E: SELECT SNAME，AGE FROM S，SC WHERE F: S#=S G: S# AND S H: C#='C1' I: SELECT SNAME，AGE FROM S，SC WHERE J: S#=S K: S# AND S L: C#='C1' ORDERBY M: S# N: SELECT SNAME，AGE FROM S WHERE O: S#=(SELECT S P: S# FROM SC WHERE S Q: C#='C1')

“查询选修了3门以上课程的学生的学生号”，正确的SQL语句是( )。 A: SELECT S#FROM SC GROUP BY S#WHERE COUNT(*)>3 B: SELECT S#FROM SC GROUP BY S#HAVING COUNT(*)>3 C: SELECT S#FROM SC ORDER BY S#HAVING COUNT(*)>3 D: SELECT S#FROM SC ORDER BY S#WHERE COUNT(*)>3

查找数据表S中所有的记录，可以用（ ）。 A: SELECT * FROM S B: SEARCH * FROM S C: INSERT * FROM S D: SEARCH S

Sometimes, a man’s way of handling a problem ______ a woman’s A: different from B: differ from C: distinct from D: is distinct from

下列SQL语句中，正确的是（ ）。 A: SELECT S B: , SNAME FROM SC GROUP BY S C: SELECT S D: FROM SC GROUP BY S E: HAVING COUNT(*)>3 F: SELECT S G: ,Cname FROM SC GROUP BY S H: WHERE COUNT(*)>3 I: SELECT S J: FROM SC WHERE COUNT(*)>3 GROUP BY S

基于表S创建视图R的SQL语句是【 】 A: CREATE R AS SELECT 学号，姓名 FROM S B: CREATE TABLE R AS SELECT 学号，姓名 FROM S C: CREATE VIEW R AS SELECT 学号，姓名 FROM S D: CREATE R FROM SELECT 学号，姓名 AS S

若要删除数据库中已经存在的表S,可用_________语句。 A: DELETE TABLE S B: DELETE FROM S C: DROP TABLE S D: DROP FROM S

How is the statue being made, and what is it being made from A: It's being made from a piece of metal. B: It's being carved from a single block of standstone. C: It's assembled with many blocks of stones. D: It's purely natural.

Why was the journey different from the author’s expectation from the very beginning?

Hector’s mother is from Mexico.