汽轮机排汽比焓h1=2260.87kJ/kg,凝结水比焓h2=125.5kJ/kg。求1kg蒸汽在凝结器内放出的热量。
第1题:
下列程序的运行机结果是【 】。
Private Sub Form_ Click()
Dim k As Integer
n= 5
m= 1
k= 1
Do
m=m+2
k= k+1
Loop While k<=n
Print m
End Sub
第2题:
阅读下列程序: Private Sub Command1_Click( ) Dim i As Integer,k As Integer k=2 For i=1 To 3 Print H(k); Next i End Sub Function H(j As Integer) a=0 Static b a=a+1 b=b+1 H=a*b+j End Function 程序运行后,单击命令按钮输出结果是
A.234
B.345
C.567
D.356
第3题:
下面程序运行后,窗体中显示【 】。
Private Sub Command1_Click) ( )
aS ="*" :b$ ="$"
For k = 1 To 3
x$ =Strings (Len(a$) +k,b$ )
Print x $;
Next
End Sub
第4题:
下面程序的输出结果是。 Private Sub Commandl_Click ch$=“ABCDEF” proc ch:Print ch End Sub Private Sub proc(ch As Stnng) s=“” For k=Len(ch) TO 1 Step -1 s=s&Mid(ch,k,1) Next k ch=s End Sub A.ABCDEF B.FEDCBA C.A D.F
第5题:
阅读下列程序。
Option Base 1
Private Sub Form. _Click()
Dim x(3,3)
For j=1 to 3
For k=l to 3
If j=k then x(j,k)=1
If j<>k then x(j,k)=k
Next k
Next i
Call fun(x())
End Sub
Private Sub fun(x())
For j=1 to 3
For k=1 to 3
Print x(j,k);
Next k
Next j
End Sub
运行程序时,输出结果为【 】。
第6题:
下面程序的输出结果是( )。 #include"stdio.h" int sub(int m) { static a=4; a+=m; return a; } void main() { int i=2,j=1,k; k=sub(i); k=sub(j); printf("%d",k); }
A.6
B.7
C.8
D.9
第7题:
阅读下列程序。
Option Base 1
Private Sub Form CliCk()
Dim x(3,3)
For j=1 to 3
For k=1 to 3
If j=k then x(j,k)=1
If j<> k then x(j,k)=3
Next k
Next j
Call fun(x())
End Sub
Private Sub fun(a())
For j=1 to 3
For k=1 to 3
Print a (j,k);
Next k
Next j
End Sub
运行程序时,输出的结果是【 】。
第8题:
以下程序的输出结果是【 】。
main()
{ int x=0;
sub(&x,8,1);
printf(“%d\n”,x);
}
sub(int *a,int n,int k)
{ if(k<=n)sub(a,n/2,2*k);
*a+=k;
}
第9题:
以下程序的输出结果是( )。
include<stdio.h>
main()
fint x=0;
sub(&x,16,2);
printf("%d\n",x);
}
sub(int*a,int n,int k)
{if(k<=n) sub(a,n/2,2*k);
*a+=k;
}
第10题:
当发生Form_Click事件时,下列程序的输出结果是( )。 Private m As Integer,n As Integer Private Sub Form_Click() Dim k As Integer,p As Integer k=6:p=60 Call sub1(k,p) Print m,n,m,k,p Call sub1(k,p) Print m,n,k,p End Sub Private Sub Form_Load() m=7 n=70 End Sub Public Sub sub1(x As Integer,ByVal y As Integer) Dim m As Integer n=n+5 m=n+x+y x=x+y y=x+y End Sub
A.7 75 66 60 7 80 126 60
B.7 75 66 60 7 75 126 60
C.7 75 66 60 7 80 66 60
D.7 75 66 60 7 75 66 60