【单选题】
字符数组s不能作为字符串使用的是（ ）
①
<imgwidth="135"height="26"v:shapes="图片_x0020_75"src="http://wljy.whut.edu.cn/uploadfiles/word/cyy02-60.files/image070.png">
②
<imgwidth="149"height="21"v:shapes="图片_x0020_76"src="http://wljy.whut.edu.cn/uploadfiles/word/cyy02-60.files/image071.png">
③
<imgwidth="293"height="25"v:shapes="图片_x0020_77"src="http://wljy.whut.edu.cn/uploadfiles/word/cyy02-60.files/image072.png">
④
<imgwidth="291"height="24"v:shapes="图片_x0020_78"src="http://wljy.whut.edu.cn/uploadfiles/word/cyy02-60.files/image073.png">
【单选题】
在表结构为（职工号，工资）的表Employee中查询职工号的第5位开始的4 个字符为“0426”职工情况，正确的 SQL 命令是
①
SELECT * FROM Employee WHERE STR(职工号,5,4)=0426
②
SELECT * FROM Employee WHERE SUBSTR(职工号,5,4）=0426
③
SELECT * FROM Employee WHERE STR(职工号,4,5)=0426
④
SELECT * FROM Employee WHERE SUBSTR(职工号,4,5）=0426
【简答题】
已知函数 。下面是实现计算该函数的程序，请填空完成以下程序。
Private Sub Command1_Click()
Dim k As Integer, i As Integer, s As Long
n = 5 : k = 1
For i = 1 To n
s = s +[填空]
Next i
Print s
End Sub
Function pow(a As Integer, b As Integer) As Long
Dim i As Integer, t As Long
t = 1
For i = 1 To a
[填空]
Next i
pow = t
End Function
【单选题】
假定s被定义为指针类型char *的变量，初始指向的字符串为Hello world!，若要使变量p指向s所指向的字符串，则p应定义为？
①
char *p=s;
②
char *p=
③
char *p;p=*s;
④
char *p; p=