问题 单项选择题

设有关系Students(学号,姓名,年龄,性别,系名,家庭住址),其中,属性“系名”是关系DEPT的主键,用户要求访问“家庭住址”的某个成分,如邮编、省、市、街道以及门牌号。关系Students的主键和外键分别是 (5) 。“家庭住址”是一个 (6) 属性。

(6)处填()。

A.简单

B.复合

C.多值

D.派生

答案

参考答案:B

阅读理解

Hello, my name is Sandy. My dream house is on a beach. It has two gardens. The front garden is large with many beautiful flowers and trees. We can take a walk and enjoy the beautiful flowers in it. There is a swimming pool in the back garden. We can swim there at any time.

On the ground floor, there is a big hall. You can see it after you walk past the front door. On the right of the big hall is a wonderful living room. There we can chat with friends, have a good rest, watch TV and enjoy different kinds of entertainments  (娱乐). On the left, there is a computer room and a study. They are mine. I want to be a computer game designer, so the computer room is my favourite.

On the first floor, there are six bedrooms, and each has a modern bathroom. When my friends stay with me, they can have a bath in their own rooms. There is a big bed in each bedroom. So we can sleep comfortably.

Well, that is my dream house. Don't you think it's wonderful?

小题1:Sandy has ____ in the front garden of her dream house.

A.a swimming pool

B.a computer

C.many flowers and trees

D.a hall小题2: Sandy can      _ in the back garden of her dream house.

A.swim

B.sleep comfortably

C.cook delicious meals

D.watch TV小题3: Which room does Sandy like best?

A.The kitchen.

B.Her bedroom.

C.The bathroom.

D.The computer room.小题4:Sandy and her friends can do the following things in the living room EXCEPT (除了 )       .

A.watching TV

B.having a good rest

C.playing ball games

D.chatting with each other小题5:How many bathrooms are there on the first floor?

A.Six.

B.Eleven.

C.One.

D.Fifteen.

判断题