在数据库表上的字段有效性规则是A) 逻辑表达式 B) 字符表达式C) 数字表达式 D

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问题:

在数据库表上的字段有效性规则是

A) 逻辑表达式
B) 字符表达式
C) 数字表达式
D) 以上三种都有可能

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

阅读理解。根据短文内容判断下列句子的正(T)误(F)。

      Zoom and Zip have a trip in Australia. One day, they drive to go outing. Zip says, " Zoom, do you know

the traffic rules? " Zoom says, " Yes, I do. In the UK, drivers drive on the left side. But in China, drivers drive

on the right side.” Suddenly, Zip says, " Zoom! Stop! A koala (考拉)." Zoom says, " Oh, how lovely! " A koala

mother with her baby on her back, walks slowly on the road. When she goes away, Zoom and Zip go on their

trip, "Australia is a heaven (天堂) to all the animals.” says Zip.

( ) 1. Zoom and Zip have a trip in the UK.

( ) 2. Zoom and Zip walk to go outing.

( ) 3. In the UK, drivers drive on the left side.

( ) 4. In China, drivers drive on the left side.

( ) 5. A koala mother with her baby is walking on the road.

( ) 6. Zoom and Zip love Australia very much.

( ) 7. Australia is a heaven to all the people.

题型:单项选择题

用“_____”画出不同类的词语。

1.爷爷  奶奶  老人  叔叔  阿姨 

2.月亮  星星  太阳  地球  宇宙 

3.飞机  火车  轮船  汽车  风车 

4.报刊亭 图书馆 菜市场 文化站 

5.西瓜  冬瓜  丝瓜  南瓜  苦瓜

6.中国  美国  英国  巴西  亚洲

题型:单项选择题

单位欲开立账户办理日常转账结算和现金收付,则银行可建议其()。

A.开立多个此用途的账户

B.开立基本存款账户

C.开立一般存款账户

D.开立企业定期存款账户

题型:单项选择题

The children are interested ___ this subject. [ ]

A. to

B. with

C. in

D. at

题型:单项选择题

某屋架,业主供应钢材为Q235-B钢(3号镇静钢),型钢及节点板厚度均不超过 10mm,钢材抗压强度设计值是( )。

A.200N/mm2
B.210N/mm2
C.215N/mm2
D.225N/mm2

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