试题与答案

公司中有多个部分和多名职员,每个职员只能属于一个部门,一个部门可以有多名职员,从职员

题型:单项选择题

题目:

公司中有多个部分和多名职员,每个职员只能属于一个部门,一个部门可以有多名职员,从职员到部门的联系类型是

A.多对多

B.一对一

C.多对一

D.一对多

答案:

参考答案:C

解析:解析:现实世界中事物之间的联系在信息世界中反映为实体集之间的联系,实体集间的联系个数不仅可以是单个的也可以是多个的,这种关系可以有下面几种对应:一对一、一对多(多对一)多对多。两个实体集间的联系可以用下图表示:

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题型:改错题

短文改错(共10小题;每小题1分,满分10分)

下面短文中共有10处语言错误,每句中最多有两处错误。每处错误仅涉及一个单词的增加、删除或修改。

增加:在缺词处加一个漏词符号(∧),并在此符号下面写出该加的词。

删除:把多余的词用斜线(\)划掉。

修改:在错的词下划一横线,并在该词下面写出修改后的词。

注意:1.每处错误及其修改均仅限一词;

2.只允许修改10处,多者(从第11处起)不计分。

Dear sir,

Last year I buy a refrigerator in your store on Chang An road. We all like shape of the refrigerator. And recently I find something is wrong with it. It begins to make noise when it was turned on. At first it is low but gradual it become louder and louder. To make the matter bad, it even stops working sometimes. We all feel disappointing. I am writing to ask for help. Would you please send a person to repair it? I will stay at home this weekend. Please call me before you come to here. My telephone number is 66065531. Thanks you very much.

Customer

Li Ming

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