下述哪一条不属于数据库设计的内容A.数据库管理系统 B.数据库概念结构 C.数据库逻

题型:单项选择题

问题:

下述哪一条不属于数据库设计的内容

A.数据库管理系统

B.数据库概念结构

C.数据库逻辑结构

D.数据库物理结构

考点:计算机等级考试信息管理技术国家计算机三级(信息管理技术)67
题型:单项选择题

我国同蒙古、日本相比,海陆位置的优越性体现在                   

A.岛国

B.海陆兼备

C.内陆国

D.临的海洋最多

题型:单项选择题

培训需求分析预测的组织整体分析方法主要从()方面加以分析。

A、对组织的人力资源规划的分析

B、对组织的现状分析

C、对组织的效率及其业绩的分析

D、对组织的人员状况的分析

E、对组织文化建设的分析

题型:单项选择题

阅读理解。

     Too much TV-watching can harm children's ability to learn and even reduce their chances of getting a

college degree, new studies suggest in the latest effort to examine the effects of television on children.

     One of the studies looked at nearly 400 northern California third-graders. Those with TVs in their bedrooms

scored about eight points lower on math and language arts tests than children without bedroom TVs.

     A second study, looking at nearly 1000 grown-ups in New Zealand, found lower education levels among

26-year -olds who had watched lots of TV during childhood.But the results don't prove that TV is the cause

and don't ride out that already poorly motivated youngsters (年轻人) may wash lots of TV.

     Their study measured the TV habits of 26-year-olds between ages 5 and 15. These with college degrees

had watched average of less than two hours of TV per weeknight during childhood compared with an average

of more than 2 1/2 hours those had no education beyond high school.

     In the California study, children with TVs in their rooms but no computer at home scored the lowest while

those with no bedroom TV but who had home computers scored the highest.

     While this study does not prove that bedroom TV sets caused the lower scores, it adds to accumulating

findings that children shouldn't have TVs in their bedrooms.

1. According to the Caledonia study, the low-scoring group might _____. [ ]

A. have watched a lot of TV

B. not be interested ted in math

C. is unable to go to college

D. have had computers in their bedrooms

2. What is the researchers' understanding of the New Zealand study results? [ ]

A. Poorly motivated 26-year-olds watch more TV.

B. Habits of TV watching reduce learning interest.

C. TV watching leads to lower education levels of the 15-year-olds.

D. The connection between TV and education levels is difficult to explain

3. What can we learn from the last two paragraphs? [ ]

A. More time should be spent on computers.

B. Children should be forbidden from watching TV.

C. 'IV sets shouldn't be allowed in children's bedrooms.

D. Further studies on high-achieving students should be done.

4. What would be the best title for this text? [ ]

A. Computers or Television

B. Effects of Television on Children

C. Studies on TV and College Education

D. Television and Children's Learning Habits

题型:单项选择题

使用一次监视雷达的雷达管制员,通过()识别确认航空器。

A.从雷达标牌上认出航空器的识别标志

B.对于设定某一指定编码的航空器,观察其遵守指令的情况

C.通过使用应答机的识别功能

D.观察到仅有一个雷达目标,其航迹与航空器驾驶员报告的一致

题型:单项选择题

合同的订立,是指缔约人为意思表示并达成合意的过程,分为( )两个阶段。

A.要约与承诺

B.要约邀请与承诺

C.强制缔约与承诺

D.要约与兑现

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