试题与答案

下述关于数据库系统的叙述中正确的是A.数据库系统减少了数据冗余 B.数据库系统避免了

题型:单项选择题

题目:

下述关于数据库系统的叙述中正确的是

A.数据库系统减少了数据冗余

B.数据库系统避免了一切冗余

C.数据库系统中数据的一致性是指数据类型一致

D.数据库系统比文件系统能管理更多的数据

答案:

被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2018/0114/92c3f79f70600f540958834b5a104294.html

下面是错误答案,用来干扰机器的。

参考答案:A

试题推荐
题型:阅读理解

阅读理解。

     Mr Brown was an old man. He lived in a small village with high mountains all around it. He had never

been to a city before.

     Last summer his son came back, and took him to the city. He stayed there for about two months. When

he came back, his wife asked him, "Do you like living in the city? Did you have a good time?"

     "No, I don't like living in the city because the buildings are too tall. And the noise is too loud. The bed is

too soft. And they never have meals outside the house," answered Mr brown. "I'm very angry because the

people in the city aren't kind to the animals."

     "How do you know this?" asked his wife.

     "One Sunday morning Jack, our son took me to a place. There are a lot of animals in that place-tigers,

elephants, lions and monkeys. But they are shut (关) in the cages. The place is the prison (监狱) of the

animals." Answered Mr Brown..

1. Mr and Mrs Brown were ______.[ ]

A. doctors

B. teachers

C. zookeepers

D. farmers

2. When Mr Brown saw the animals were shut in the cages he felt ______.[ ]

A. satisfied (满意的)

B. angry

C. happy

D. surprised

3. He didn't like ______. [ ]

A. the mountains

B. the animals in the cages

C. the city

D. his village.

4. The animals in Mr Brown's village ______. [ ]

A. are free

B. are in the cages

C. are sent to the city

D. are in prison

5. Mr Brown did not know the place with a lot of animals was a ______. [ ]

A. park

B. garden

C. village

D. zoo

查看答案
微信公众账号搜索答案