问题 单项选择题

下列结果不是动态集合,而是执行指定的操作,例如,增加、修改、删除记录等的是( )。

A.选择查询

B.操作查询

C.参数查询

D.交叉表查询

答案

参考答案:B

解析: 本题考查各类查询的意义。选择查询就是按给定的要求从数据源中检索数据,它不改变表中的数据;查询的结果是1个数据记录的动态集,使用户可以查看、排序、修改、分析等;选择查询还可以对记录进行分组,再按组求和、计数、求平均值等统计汇总计算。操作查询就是在操作中以查询所生成的动态集对表中数据进行更改(包括添加、删除、修改以及生成新表)的查询;查询后的结果不是动态集合,而是转换后的表;Access中有4种操作查询:生成表查询、更新查询、追加查询及删除查询。参数查询就是运行时需要用户输入信息(即参数)的一类特殊查询,也就是说,执行参数查询时,系统会显示一个对话框,要求用户输入所需要的条件,然后才找出符合条件的记录。实际问题中,有一类数据源有两个以上可以进行分组统计的字段,交叉表查询就是以这类数据源的某一个可以进行分组统计的字段作为列标题、以其他一个或多个可以进行分组统计的字段作为行标题重构数据,形成一个新形式的表格的特殊查询。答案为B。

单项选择题
单项选择题

Regardless of their political affiliation, in all countries women must overcome a host of stumbling blocks that limit their political careers. "Most obstacles to progress consist of (1) of various kinds," says the Inter-Parliamentary Union (IPU), a Geneva-based organization (2) 139 parliaments, including the lack of time, training, information, self-confidence, money, support, motivation, women’s networks and solidarity between women.

In every culture, prejudice and stereotypes (3) hard. The belief still holds (4) that women belong in the kitchen and (5) the children, not at election (6) or in the Speaker’s chair. The media often reinforce traditional images of women, who, upon entering politics, also bear the brunt (正面冲击) of verbal and physical (7) .

In impoverished (贫穷的) countries (8) by civil conflicts and deteriorating economic and social conditions, women are (9) by the tasks of managing everyday life and looking after their families.

The IPU stresses the general lack of child-care facilities—often (10) a privileged few—the (11) of political parties to change the times and running of meetings and the weak backing women receive from their families. That support, which is (12) as well as financial, is (13) vital because women have internalized (14) images of themselves since the (15) of time and often suffer from low self-confidence.

Another obstacle is the lack of financial resources, especially as election campaigns become increasingly expensive. (16) , women encounter more or less open machismo (男子汉的高傲) in the (17) of closed political circles (18) entry to the "second sex. " Lastly, they (19) the lack of solidarity between women, (20) by the fact that the number of available positions is limited.

14()

A.negative

B.obsolete

C.undesirable

D.vice