数据库系统的核心是______。A.数据模型 B.DBMS C.软件工具 D.数据库

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问题:

数据库系统的核心是______。

A.数据模型

B.DBMS

C.软件工具

D.数据库

考点:计算机等级考试VISUALFOXPRO二级VISUALFOXPRO笔试
题型:单项选择题

Early to bed, early to rise, makes a man healthy, wealthy and wise.  

This is an old English saying. Have you heard of it before? It means that we must go to bed early and get up early in the morning. Then we shall be healthy. We shall also be rich (wealthy) and clever (wise).  

This is true. The body must have enough sleep to be healthy. Children of young age should have ten hours’ sleep every night. Children who do not have enough sleep cannot do their work very well. They will not be wise and they may not become wealthy!  

The body also needs exercise. Walking, running, jumping, swimming and playing games are all exercise. Exercise keeps the body strong. Exercise also helps the blood (血液) to move around inside the body. This is very important. Our blood takes food to all parts of our body. The head also needs blood .Exercise helps us to think better!  

小题1:If we get up early and go to bed early , we’ll _________ .  

A.have enough exercise

B.be healthy  

C.think better

D.have strong blood小题2:If a child doesn’t have 10 hours’ sleep, maybe he _____ .  

A.becomes wise

B.won’t do well in his work  

C.goes to school in time

D.has enough sleep小题3:A person needs exercise because _______ .  

A.it makes him healthy

B.he has a lot of homework to do   

C.he is strong enough

D.he does exercise小题4:Exercise makes the ______ move quickly and smoothly(流畅)  

A.body

B.blood

C.children

D.head小题5:Which of the following if Not TRUE?  

A.Exercise does good to a person’s head  

B.A student should have 10 hours’ sleep  

C.It’s good for you to get up early and go to bed early.   

D.If you have enough blood, you’ll be wise.

题型:单项选择题

(1)列式:x与20的差不小于0;

(2)若(1)中的x(单位:cm)是一个正方形的边长,现将正方形的边长增加2cm,则正方形的面积至少增加多少?

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领导干部定点联系活动形式包括()等。

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五四爱国运动爆发的导火线是   [ ]

A.北洋军阀的黑暗统治              

B.北洋军阀逮捕爱国学生    

C.俄国十月革命的影响        

D.巴黎和会上中国外交的失败

题型:单项选择题

判决书、委任状、逮捕证等具有法律效力,所以是法。 ( )

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