计算题:含有CaCO390%的石灰石1000吨煅烧制取生石灰,已知石灰石的分解率为94.5%,问可制取生石灰多少吨(已知CaCO3的相对分子量为100.09,CaO的相对分子量为56.08)?
第1题:
A.pH上升
B.PaCO/sub2/supsubno上升
C.PaO/sub2/supsubno上升
D.HCO/sub3/supsubno/sup-/supsubno降低
E.HCO/sub3/supsubno/sup-/supsubno升高
第2题:
下列程序的运行结果是______。
Sub abcd(ByValn As Integer)
n=n+5
End Sub
Private Sub Form_Click()
nx%=3
Callabcd(nx%)
Printnx%
End Sub
第3题:
在通用声明中定义a,在窗体中添加一个命令按钮Command1,编写如下程序代码:
DimaAsInteger
Subtest()
a=a+1:b=b+1:c=c+1
Print"Sub:";a;",";b;",";c
EndSub
PrivateSubCommand1_Click()
a=2:b=3:c=4
Calltest
Calltest
EndSub
程序运行后,单击命令按钮,窗体中将显示( )
A.Sub:3,4,5Sub:4,5,6
B.Sub:2,3,4Sub:2,3,4
C.Sub:3,1,1Sub:4,1,1
D.Sub:1,1,1Sub:1,1,1
第4题:
标准模块中有如下程序代码: Public x As Integer,y As Integer Sub var pub( ) x=10:y=20 End Sub 在窗体上有1个命令按钮,并有如事件过程: Private Sub Command1 Click( ) Dim x As Integer Call var pub x=x+100 y=y+100 Print x;y End Sub 运行程序后单击命令按钮,窗体上显示的是( )。
A.100 100
B.100 120
C.110 100
D.110 120
第5题:
以下有关数组定义的语句序列中,错误的是
A.Static arrl(3) arr1(1)=100 arrl(2)="Hello" arrl(3)=123.45
B.Dim arr2()As Integer Dim size As Integer Private Sub Command2_Click() size=InputBOX(“输入:”) ReDim arr2(size) ┄ End Sub
C.Option Base 1 Private Sub Command3_Click() Dim arr3(3)As Integer ┄ End Sub
D.Dim n As Integer Private Sub Command4_Click() Dim arr4(n)As Integer ┄ End Sub
第6题:
含有CaCO390%的石灰石1000吨煅烧制取生石灰,已知石灰石的分解率为94.5%,问可制取生石灰多少吨(已知CaCO3的相对分子量为100.09,CaO的相对分子量为56.08)?
第7题:
下列程序的输出结果是______。 #include sub1(char a,char b) {char c; c=a;a=b;b=c;} sub2(char* a,char b) {char c; c=*a;*a=b;b=c;} sub3(char* a,char*b) {char c; c=*a;*a=*b;*b=c;} { char a,b; a='A' ;b='B'; sub3 (&a, &b) ;putchar (a) ;putchar (b); a='A';b='B';sub2(&a,b);putchar(a);prtchar(b); a='A';b='B';sub1(a,b);putchar(a) ;putchar(b); }
A.BABBAB
B.ABBBBA
C.BABABA
D.BAABBA
第8题:
运行以下程序后,输出结果为_____________。 Private Sub Command1_Click() a=1:b=2:c=3 Call test(a,b+3,(c)) Print "main:";a;b;c End Sub Private Function test(p,m,n) p=p+1:m=m+1:n=n+1 Print "sub:";p;m;n End Function
:A. sub:2 6 4 main:1 2 3
B. sub:2 6 4 main:2 2 3
C. sub:2 6 4 main:2 6 4
D. sub:2 6 4 main:1 6 4
第9题:
以下有关数组定义的语句序列中,错误的是 ______。
A.Static arrl(3) arrl(1)=100 arrl(2)="Hello" arrl(3)123.45
B.Dim arr2()As Integer Dim size As Integer Private Sub Command2_click() size=InputBox("输入:") ReDimarr2(size) End Sub
C.Option Base1 Private Sub Command3_click() Dim arr3(3)As Integer End Sub
D.Dim n As Integer Private Sub Command4_Click() Dim arr4(n)As Integer End Sub
第10题:
写出程序运行的结果
Public class Base
Public virtual string Hello() {return “Base”;}
Public class Sub:Base
Public override string Hello() {return “Sub”;}
1. Base b = new Base(); b.Hello;
2. Sub s = new Sub(); s.Hello;
3. Base b = new Sub (); b.Hello;
4. Sub s = new Base(); s.Hello;