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____
A.Primary Key NOTNULL
B.PIimary，Key
C.Foreign Key
D.Candidate Key
A.
B.
C.
D.

A.Primary
B.PIimary，Key
C.Foreign
C.Candidate

【参考答案】

C
解析：在数据库系统设计的概念模式设计阶段，是根据对用户信息需要的分析设计E-R图。其中，对于属性的分析中，派......

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会计科目按其所反映的会计对象具体内容可分为( )

A.资产、负债、所有者权益、收入、费用等五类
B.资产、负债、所有者权益、成本、利润等五类
C.资产、负债、所有者权益、利润、损益等五类
D.资产、负债、所有者权益、成本、损益等五类

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第二节完型填空阅读下面短文，从短文后所给各题的四个选项(A、B、C和D)中选出能填入相应空白处的最佳选项。Any housewife who went to the new supermarket wished to be the lucky customer who did not have to pay for her shopping. This was what the (16) just inside the entrance (17) . It said: Remember, (18) , one of our customers gets (19) goods. THIS MAY BE YOUR LUCKY DAY!For quite a long time Mrs. Edwards (20) , like many of her (21) , to be the lucky customer. Unlike her friends, she never (22) hoping. The (23) in the kitchen was full of things which she did not neeD.Her husband tried to advise her (24) buying so many things but faileD.She (25) dreamed of the DAY when the manager of the supermarket would come up to her and say, 'Madam, THIS IS YOUR LUCKY DAY. Everything in your (26) doesn't need to be paid!' One Friday afternoon Mrs. Edwards shopped (27) . But she was not the lucky customer. No sooner had she just put the things inside her (28) than she found that she had forgotten to (29) teA.She dashed back to the (30) , got some tea and went towards the(31) . As she did so, she saw the (32) camE.(33) his hand he said, 'I want to (34) you. You are our LUCKY CUSTOMER this week! Everything you have in your basket (35) !'(1)

A.notice
B.report
C.board
D.newspaper

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