单项选择题

The data hazard in pipeline does not include（）.

A．RAW
B．WAW
C．WAR
D．RAR

<上一题目录下一题>

热门试题

单项选择题

Let the schema R(U, F), U=ABCD, F={A→BC, C→D }. The schema R(U, F) is in the normal form of（）.

A．1NF
B．2NF
C．3NF
D．BCNF

单项选择题

Which one of the following expressions is equivalent to 'X BETWEEN 15 AND 25'（）

A．X>15 AND X<25
B．X=15 AND X=25
C．X>25 AND X<15
D．X> = 15 AND X<=25

相关试题