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【单选题】
若要在一对多的关联关系中,“一方”原始记录更改后,“多方”自动更改,应启用( )。
A.
完整性规则
B.
级联删除相关记录
C.
级联更新相关记录
D.
有效性规则
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参考答案：
举一反三
【单选题】On returning home from school, Xiao Hong______ her MP4 and threw herself down onto the bed, ______ music.
A.
put on; listening to
B.
put on; listened to
C.
left out; listened to
D.
left out; listening to
查看完整题目与答案
【单选题】根据真值表写出的逻辑表达式,正确的是( )
A.
Y=A+B
B.
Y=AB
C.
Y=A
D.
Y=B
查看完整题目与答案
【单选题】Which of the following statements best explains how the use of money in an economy increases economic efficiency?
A.
Money increases economic efficiency because it is costless to produce.
B.
Money increases economic efficiency because it discourages specialization.
C.
Money increases economic efficiency because it decreases transactions costs.
D.
Money cannot have an effect on economic efficiency.
查看完整题目与答案
【单选题】下列能产生方向稳定性的是( )。
A.
垂尾,方向舵,上反角
B.
垂尾,上反角,后掠角
C.
下反角,后掠角,方向舵
查看完整题目与答案
【判断题】毛泽东女儿姓李,是因为其曾化名李得胜
A.
正确
B.
错误
查看完整题目与答案
【判断题】合规审计与财务报表审计有密切的联系。( )
A.
正确
B.
错误
查看完整题目与答案
【单选题】The transactions demand for money______.
A.
increases as GNP increases
B.
is reduced by credit cards
C.
decreases as the average selling price of a unit of output increases
D.
both A and B
查看完整题目与答案
【单选题】根据真值表写出的逻辑表达式,正确的是( )
A.
Y=A+B
B.
Y=AB
C.
Y=A
D.
Y=B 真值表
E.
A B Y 0 0 0 0 1 1
查看完整题目与答案
【单选题】It was such a pity that she threw __________ her chance of happiness.
A.
at
B.
back
C.
in
D.
away
查看完整题目与答案
【单选题】Aggregate demand increases if the quantity of money ( ).
A.
decreases or tax rates increase
B.
or transfer payments decrease
C.
remains constant or tax rates increase
D.
increases or tax rates decrease
查看完整题目与答案
相关题目：
【单选题】On returning home from school, Xiao Hong______ her MP4 and threw herself down onto the bed, ______ music.
A.
put on; listening to
B.
put on; listened to
C.
left out; listened to
D.
left out; listening to
查看完整题目与答案
【单选题】根据真值表写出的逻辑表达式,正确的是( )
A.
Y=A+B
B.
Y=AB
C.
Y=A
D.
Y=B
查看完整题目与答案
【单选题】Which of the following statements best explains how the use of money in an economy increases economic efficiency?
A.
Money increases economic efficiency because it is costless to produce.
B.
Money increases economic efficiency because it discourages specialization.
C.
Money increases economic efficiency because it decreases transactions costs.
D.
Money cannot have an effect on economic efficiency.
查看完整题目与答案
【单选题】下列能产生方向稳定性的是( )。
A.
垂尾,方向舵,上反角
B.
垂尾,上反角,后掠角
C.
下反角,后掠角,方向舵
查看完整题目与答案
【判断题】毛泽东女儿姓李,是因为其曾化名李得胜
A.
正确
B.
错误
查看完整题目与答案
【判断题】合规审计与财务报表审计有密切的联系。( )
A.
正确
B.
错误
查看完整题目与答案
【单选题】The transactions demand for money______.
A.
increases as GNP increases
B.
is reduced by credit cards
C.
decreases as the average selling price of a unit of output increases
D.
both A and B
查看完整题目与答案
【单选题】根据真值表写出的逻辑表达式,正确的是( )
A.
Y=A+B
B.
Y=AB
C.
Y=A
D.
Y=B 真值表
E.
A B Y 0 0 0 0 1 1
查看完整题目与答案
【单选题】It was such a pity that she threw __________ her chance of happiness.
A.
at
B.
back
C.
in
D.
away
查看完整题目与答案
【单选题】Aggregate demand increases if the quantity of money ( ).
A.
decreases or tax rates increase
B.
or transfer payments decrease
C.
remains constant or tax rates increase
D.
increases or tax rates decrease
查看完整题目与答案
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