问题 填空题

一个项目具有一个项目主管,一个项目主管可管理多个项目,则宴体“项目主管”与实体“项目”的联系属于______的联系。

答案

参考答案:一对多(或1:N)

解析: 两个实体集间的联系实际上是实体集间的函数关系,这种函数关系可以有3种,即一对一(1:1)的联系、一对多(1:N)或多对一(N:1)的联系和多对多(N:N)的联系。

选择题
阅读理解

On a cold winter afternoon, Susan was walking home from a supermarket. She was feeling a little tired, as she was carrying her shopping bags. They were so heavy that she decided to have a rest in the park. She walked towards the gate of the park. She noticed a poor man walking out of a restaurant in front of her. The man was holding a paper bag. He walked to a rubbish bin(垃圾箱) and started looking through it.

Susan suddenly felt sad. She knew this man would take all that he could get, so she went up to him and gave him some fruit. The man looked up in surprise and took what she gave him.

A big smile appeared on his face and she felt very happy. Then he said, “Wow! First someone gave me this sandwich, then the orange juice and now some delicious fruit. This is my daughter’s lucky day. Thank you, girl.” Then he went away, singing a song.

Just then, Susan understood what the saying “Giving is getting” really meant. Everyone in the world needs help, everyone can offer help and everyone will be helped by showing kindness.

Giving sometimes doesn’t cost much, but it means a lot to the people who you help. The man’s happiness at that moment comes into Susan’s mind every time she has the chance to help others.

小题1:Susan felt a little tired because she _____.

A.walked so fast

B.looked through a rubbish bin

C.felt cold

D.carried heavy shopping bags小题2:The poor man felt _____ when Susan gave him some fruit.

A.sad

B.surprised

C.interested

D.kind小题3:The poor man’s daughter couldn’t get _____ that day.

A.orange juice

B.some fruit

C.a new coat

D.a sandwich小题4:Which of the following is TRUE according to the passage?

A.The poor man had no money to buy food for his daughter.

B.It was the poor man’s daughter’s birthday.

C.The poor man asked Susan for some fruit.

D.The poor man’s daughter was ill.小题5:The passage mainly tells us that _____.

A.giving means taking

B.giving is getting

C.we shouldn’t look through rubbish bin

D.we should give others fruit