深圳的帝王大厦高384米,比世界之窗仿造的埃菲尔铁塔的3倍还多60米,仿造的埃菲尔铁塔高多少米?(用方程解答)
解:设仿造的埃菲尔铁塔高x米。
3x+60=384
x=108
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#,SNAME FROM S WHERE S#=(SELECT SS# FROM SC WHERE C#=‘C2’)
B.SELECT S#,SNAME FROM S,SCWHERE S#=SS#AND C#=‘C2’
C.SELECT S#,SNAME FROM S,SCWHERE S#=SS#AND C#=‘C2’ORDER BY S#
D.SELECT S#,SNAME FROM S WHERE S#IN (SELECT SS# FROM SC WHERE C#=‘C2’)
法家思想的术指的是国王驾驭臣民之术。