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【单选题】
关系数据库的规范化理论指出：关系数据库中的关系应满足一定的要求，最起码的要求是达到1NF，即满足
A.
每个非码属性都完全依赖于主码属性
B.
主码属性惟一标识关系中的元组
C.
关系中的元组不可重复
D.
每个属性都是不可分解的
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【单选题】In China, when someone breaks a bowl, he is likely to say sui sui ping an as a means of controlling the evil forces which the believers feel might affect their lives. Which function does it perform?
A.
informative
B.
performative
C.
interpersonal
D.
phatic
查看完整题目与答案
【简答题】In China when someone breaks a bowl or a plate the host or the people present are likely to say sui sui ping an as a means of controlling the forces which the believers feel might affect their lives. ...
查看完整题目与答案
【多选题】the transfer function is in proper form, which means that _____
A.
the order of the numerator polynomial is less than  the order of the denominator polynomial
B.
the order of the numerator polynomial is equal to the order of the denominator polynomial
C.
the order of the numerator polynomial is greater then the order of the denominator polynomial
D.
the order of the numerator polynomial is not equivalent to the order of the denominator polynomial
查看完整题目与答案
【判断题】品牌是可持续积累的无形资产。
A.
正确
B.
错误
查看完整题目与答案
【单选题】一个可持续积累的无形资产是()
A.
质量
B.
信誉
C.
品牌
D.
服务
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【单选题】Which function means the use of language for the sheer joy of using it?
A.
informative function
B.
interpersonal function
C.
recreational  function
D.
metalingual function
查看完整题目与答案
【单选题】用标距50 mm和100 mm的两种拉伸试样,测得低碳钢的屈服极限分别为 、 ,伸长率分别为 和 。比较两试样的结果,则有以下结论,其中正确的是哪一个?( )
A.
, ;
B.
, ;
C.
, ;
D.
, 。
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【单选题】用标距50mm和100mm的两种拉伸试样,测得低碳钢的屈服应力分别为 、 ,延伸率分别为 、 。比较两试样的结果,则有__________ 。
A.
，
B.
，
C.
,
D.
，
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【判断题】一个可持续积累的无形资产是品牌。()
A.
正确
B.
错误
查看完整题目与答案
【单选题】用标距50mm和100mm的两种拉伸试样,测得低碳钢的屈服应力分别为σs1和σs2,延伸率分别为δ5和δ10,比较两试样的结果,则有( )
A.
σs1δ10
B.
σs1
C.
σs1=σs2，δ5>δ10
D.
σs1=σs2，δ5=δ10
查看完整题目与答案
相关题目：
【单选题】In China, when someone breaks a bowl, he is likely to say sui sui ping an as a means of controlling the evil forces which the believers feel might affect their lives. Which function does it perform?
A.
informative
B.
performative
C.
interpersonal
D.
phatic
查看完整题目与答案
【简答题】In China when someone breaks a bowl or a plate the host or the people present are likely to say sui sui ping an as a means of controlling the forces which the believers feel might affect their lives. ...
查看完整题目与答案
【多选题】the transfer function is in proper form, which means that _____
A.
the order of the numerator polynomial is less than  the order of the denominator polynomial
B.
the order of the numerator polynomial is equal to the order of the denominator polynomial
C.
the order of the numerator polynomial is greater then the order of the denominator polynomial
D.
the order of the numerator polynomial is not equivalent to the order of the denominator polynomial
查看完整题目与答案
【判断题】品牌是可持续积累的无形资产。
A.
正确
B.
错误
查看完整题目与答案
【单选题】一个可持续积累的无形资产是()
A.
质量
B.
信誉
C.
品牌
D.
服务
查看完整题目与答案
【单选题】Which function means the use of language for the sheer joy of using it?
A.
informative function
B.
interpersonal function
C.
recreational  function
D.
metalingual function
查看完整题目与答案
【单选题】用标距50 mm和100 mm的两种拉伸试样,测得低碳钢的屈服极限分别为 、 ,伸长率分别为 和 。比较两试样的结果,则有以下结论,其中正确的是哪一个?( )
A.
, ;
B.
, ;
C.
, ;
D.
, 。
查看完整题目与答案
【单选题】用标距50mm和100mm的两种拉伸试样,测得低碳钢的屈服应力分别为 、 ,延伸率分别为 、 。比较两试样的结果,则有__________ 。
A.
，
B.
，
C.
,
D.
，
查看完整题目与答案
【判断题】一个可持续积累的无形资产是品牌。()
A.
正确
B.
错误
查看完整题目与答案
【单选题】用标距50mm和100mm的两种拉伸试样,测得低碳钢的屈服应力分别为σs1和σs2,延伸率分别为δ5和δ10,比较两试样的结果,则有( )
A.
σs1δ10
B.
σs1
C.
σs1=σs2，δ5>δ10
D.
σs1=σs2，δ5=δ10
查看完整题目与答案