全国计算机等级考试二级ACCESS冲刺题(3)
Next J Next I 执行上面的语句后,K的值为______。 A.8 B.10 C.14 D.21 (33)VBA数据类型符号“%”表示的数据类型是______。 A.整型 B.长整型 C.单精度型 D.双精度型 (34)函数Mid("123456789",3,4)返回的值是______。 A.123 B.1234 C.3456 D.456
Next I
执行上面的语句后,K的值为______。
A.8
B.10
C.14
D.21
(33)VBA数据类型符号“%”表示的数据类型是______。
A.整型
B.长整型
C.单精度型
D.双精度型
(34)函数Mid("123456789",3,4)返回的值是______。
A.123
B.1234
C.3456
D.456
(35)运行下面程序代码后,变量J的值为______。
Private Sub Fun()
Dim J as Integer
J=10
DO
J=J+3
Loop While J
End Sub
A.10
B.13
C.19
D.21
二、填空题(每空2分,共30分)
请将每一个空的正确答案写在答题卡【1】~【15】序号的横线上,答在试卷上不得分。
(1)实现算法所需的存储单元多少和算法的工作量大小分别称为算法的 【1】 。
(2)数据结构包括数据的逻辑结构、数据的 【2】 以及对数据的操作运算。
(3)一个类可以从直接或间接的祖先中继承所有属性和方法。采用这个方法提高了软件的【3】 。
(4)面向对象的模型中,最基本的概念是对象和 【4】 。
(5)软件维护活动包括以下几类:改正性维护、适应性维护、 【5】 维护和预防性维护。
(6)SQL(结构化查询语言)是在数据库系统中应用广泛的数据库查询语言,它包括了数据定义、数据查询、 【6】 和 【7】 4种功能。
(7)文本型字段大小的取值最大为 【8】 个字符。
(8)使用查询向导创建交叉表查询的数据源必须来自 【9】 个表或查询。
(9)计算型控件用 【10】 作为数据源。
(10) 【11】 报表也称为窗体报表。
(11) 【12】 函数返回当前系统日期和时间。
(12)运行下面程序,其输出结果(str2的值)为 【13】 。
Dim str1, str2 As String
Dim i As Integer
str1 = "abcdef"
For i = 1 To Len(str1) Step 2
str2 = UCase(Mid(str1, i, 1)) + str2
Next
MsgBox str2
(13)运行下面程序,其运行结果k的值为 【14】 ,其最里层循环体执行次数为
【15】 。
Dim i, j, k As Integer
i = 1
Do
For j = 1 To i Step 2
k = k + j
Next
i = i + 2
Loop Until i > 8
全国计算机等级考试二级Access模拟试卷答案
一、选择题
(1)C
知识点:算法的基本概念
评析:计算机算法是指解题方案的准确而完整的描述,它有以下几个基本特征:可行性、确定性、有穷性和拥有足够的情报。
(2)C
知识点:线性表的概念
评析:栈和队列都是一种特殊的操作受限的线性表,只允许在端点处进行插入和删除。二者的区别是:栈只允许在表的一端进行插入或删除操作,是一种“后进先出”的线性表;而队列只允许在表的一端进行插入操作,在另一端进行删除操作,是一种“先进先出”的线性表。
(3)A

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