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在考生文件夹下有一个数据库文件“samp2.mdb”，里面有已经设计好的一个表对象“tStud”和一个查询对象“qStud4”。请按以下要求完成设计。

创建一个查询，查找并显示年龄小于等于25的学生的“编号”、“姓名”和“年龄”，将查询命名为“qStud2”。

答案

参考答案：

[微步骤]

步骤1：单击“查询”对象，再单击“新建”按钮，选择“设计视图”，单击“确定”按钮。在“显示表”对话框中双击“tStud”表，关闭“显示表”对话框。

步骤2：分别双击“编号”、“姓名”、“年龄”字段，将其全部添加到“字段”行。

步骤3：在“年龄”字段对应的“条件”行中输入“＜=25”。

步骤4：单击“保存”按钮

，将该查询保存并命名为“qStud2”。关闭设计视图。

阅读理解

Around the world more and more people are taking part in dangerous sports and activities. Of course, there have always been people who have looked for adventure(冒险)---those who have climbed the highest mountains, traveled into unknown parts of the world or sailed in small boats across the greatest oceans. Now, however, there are people who look for an immediate excitement from a risky(冒险的) activity which may only last a few minutes or even seconds. I would consider bungee(蹦极) jumping to be a good example of such an activity. You jump from a high place(perhaps a bridge or a hot-air balloon) 200 meters above the ground with an elastic(有弹性的) rope tied to your ankles. You fall at up to 150 kilometers an hour until the rope stops you from hitting the ground. It is said that about 2 million people around world have now tried bungee jumping. Other activities which most people would say are as risky as bungee jumping include jumping from tall buildings and diving into the sea from the top of high cliff(悬崖).

For the reasons, some psychologists explain that many people think their life in modern societies has become safe and boring. Not very long ago, people’s lives were constantly(持续的) in danger. They had to go out and hunt for food, diseases could not easily be cured, and life was a continuous battle (战争)for survival.

Nowadays, according to many people, life offers little excitement. They live and work in comparatively safe conditions; they buy food in shops; and there are doctors and hospitals to look after them if they become ill. The answer for some of these people is to look for danger in activities such as bungee jumping.

小题1:Are there many people who are taking part in the dangerous sports?

小题2:How many kinds of dangerous sports does the writer refer to?

小题3:How long does a bungee jumping usually last?

小题4:What do many people think of their life nowadays?

小题5:What does the writer tell us in the last two paragraphs?
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单项选择题

在项目建议书、预可行性研究、可行性研究、方案设计阶段应编制( )。

A．投资估算
B．投资概算
C．投资预算
D．投资核算
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