【单选题】下列属于华北旅游区的典型湖泊代表是( )
【单选题】小朋友们马上就要读小学了,大班的老师近日组织幼儿去参观小学,这属于:
【单选题】毛泽东提出由新民主主义社会转变为社会主义社会的总任务和主要途径的著作是()
【简答题】She also learned from previous leaders how to __________ the team and tried to improve upon the leadership.
【单选题】下列哪个是错误的?
A.
QL语句: select * from mess where height>1 .6 andheight<=1.8是查询mess表中字段(列) height值在1 .6和1.8之间的记录(记录的各个列值都要)。"
B.
SQL语句select * from mess where name like '%林%'是查询mess表中字段(列) name值等于“林”的记录(记录的各个列值都要)。
C.
SQL语句update mess set height =1.77 where name='张三'是将mess表中name字段(列)值是张三的记录(行)的height的值更新为1.77。
D.
SQL语句 insert into mess values('R1008",;将林"',2010-12-20',1 .66),('R1008',秦仁,2010-12-20',1 .66)是向表mess里添加了两条记录(两行)。
【简答题】This meeting should __________ some changes in how they work for these coming sprints, because they work to continually improve their team and practice effectiveness.
【单选题】查询选修了课程号为 'C2' 的学生号和姓名,若用下列 SQL 的 SELECT 语句表达时,哪一个是错误的?
A.
SELECT S.S# , SNAME FROM S WHERE S.S# = (SELECT SC.S# FROM SC WHERE C# = 'C2' )
B.
SELECT S.S# , SNAME FROM S , SC WHERE S.S# = S
【单选题】查询选修了课程号为/'C2/'的学生号和姓名,若用下列SQL的SELECT语句表达时,哪一个是错误的?______。
A.
SELECT S.S#,SNAME FROM S WHERE S.S#=(SELECT SC.S# FROM SC WHERE C#=/'C2/')
B.
SELECT S.S#,SNAME FROM S,SC WHERE S.S#=SC.S# AND C#=/'C2/'
C.
SELECT S.S#,SNAME FROM S,SC WHERE S.S#=SC.S# AND C#=/'C2/'ORDER BYS.S#
D.
SELECT S.S#,SNAME FROM S WHERE S.S# IN(SELECT SC.S# FROM SC WHERE C#=/'C2/')