【简答题】The technique of ( ) makes the same point, over and over again, to drive home a point.
【单选题】Over the next months, he applied himself to improving the technique.
【单选题】假定有3种关系,学生关系S、课程关系C、学生选课关系SC,它们的结构如下: S(S#(学号) , SN(姓名) , SEX(性别) , AGE(年龄) , DEPT(系别)) C (C#(课程号) , CN(课程名) ) SC (S#(学号) , C#(课程号) , GRADE(成绩) ) 其中S# 为学生号,SN为姓名,SEX为性别,AGE为年龄,DEPT为系别,C# 为课程号,CN为课程名,G...
A.
SELECT SN,AGE,SEX FROM S WHERE AGE > ( SELECT AGE FROM S WHERE SN = “李军” )
B.
SELECT SN,AGE,SEX FROM S WHERE AGE >( SN = “李军”)
C.
SELECT SN,AGE,SEX FROM S WHERE AGE > ( SELECT AGE WHERE SN=“李军”)
D.
SELECT SN,AGE,SEX FROM S WHERE AGE>李军.AGE
【判断题】Code 49是一种多层、连续型、可变长度的条码符号。
【判断题】Modernism writing chooses technique over meaning.
【单选题】In fact, we believe that our technique ( ) a clear advantage over others.