致使化学发光NOx仪中O3变压器短路及烧坏的原因为()A、潮湿空气B、使用时间长

致使化学发光NOx仪中O3变压器短路及烧坏的原因为()

  • A、潮湿空气
  • B、使用时间长

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(8)下列这个Sub过程的功能是统计字符串中“a”的个数,请在空白处填上合适的代码,将程序补充完整。Private Sub numCount() Dim num As Integer s$="software And hardware" Num=Len(s$) For i=1 unm b$=。 If b$="a"Then x=x+1 Next i Print"x=";xEnd Sub

有如下SUB过程:Sub s(x As Single,y As Single)t=xx=t / yy=t Mod yEnd Sub在窗体上添加一个命令按钮,然后编写如下事件过程:Private Sub Form_Click()Dim a As SingleDim b As Singlea=5b=4s a,bPrint a,bEnd Sub则程序运行后,单击命令按钮,输出的结果为【 】 。

以下过程的定义中,( )是错误的。 A、Public Sub Sum(x ; y)B、Public Sub Sum(ByVal x, ByVal y)C、Public Sub Sum(x As Integer,y As Integer)D、Public Sub Sum(x%, y%)

在窗体中添加一个命令按钮(名为Command1),然后编写如下代码:Public x as integerPrivate Sub Command1_Click( )x=5Call s1Call s2MsgBox xEnd SubPrivate Sub s1( )x=x+10End SubPrivate Sub s2( )Dim x as integerx=x+10End Sub窗体打开运行后,单击命令按钮,则消息框的输出结果是______

阅读如下程序, a = 1: b = 2: plus S, a, b: Print S:不能使其输出结果为3的plus过程为( )。 A、Sub plus(sum, a , b ): sum = a + b: End SubB、Sub plus(ByVal sum , a , b ): sum = a + b: End SubC、Sub plus(sum , ByVal a, ByVal b ): sum = a + b: End SubD、Sub plus(sum , ByRef a , ByRef b ): sum = a + b: End Sub

在窗体中添加一个名称为Command1的命令按钮,然后编写如下程序: Public x As Integer Private Sub Command1_Click() x=10 Call s1 Call s2 MSgBox x End Sub Private Sub s1() x=x+20 End Sub Private Sub s2() Dim x As Integer x=X+20 End Sub 窗体打开运行后,单击命令按钮,则消息框的输出结果为______。A.10B.30C.40D.50

若有以下变量和函数说明:includecharCh='*';void sub(int x,int y,char ch,double* 若有以下变量和函数说明: #include<iostream.h> charCh='*'; void sub(int x,int y,char ch,double*Z) { switch(ch) { case'+':*Z=x+y;break; case'-':*Z=x-y;break: case'*':*Z=x*y;break; case'/':*z=x/y;break: } } 以下合法的函数调用语句是( )。A.sub(10,20,Ch,y);B.sub(1.2+3,2*2,'+',Z);C.sub(sub(1,2,'+',y),sub(3,4'+',x),'-',y);D.sub(a,b,x,ch);

假定有如下的Sub过程: Sub S(x As Single,y As Single) t=x x=t/y y=t Mod y End Sub 在窗体上画一个命令按钮,然后编写如下事件过程: Private Sub Command1_Click() Dim a As Single Dim b As Single a=5 b=4 S a,b Print a,b End Sub 程序运行后,单击命令按钮,输出结果为 ______ 。A.5 4B.1 1C.1.25 4D.1.25 1

有如下程序: Private Sub Command1_Click() as="A WORKER IS HERE" x = Len(a$) For i=1 To x - 1 b$ =Mid$(a$, i,3) If b$ ="WOR" Then S=S+ 1 Next Print S End Sub 单击命令按钮,程序运行结果为A.1B.2C.3D.5

在窗体中添加一个名称为Commandl的命令按钮,然后编写如下程序:Public X As Integer Private Sub Commandl Click( )x=10 Call slCall s2MsgBox x End Sub Private Sub sl( )x=x+20 End Sub Private Sub s2( )Dim x As Integer x=x+20End Sub窗体打开运行后,单击命令按钮,则消息框的输出结果为( )。A.10B.30C.40D.50

编写如下事件过程: Private sub sub1 (ByVal x1 As String, y1 As String) Dim xt As String Dim i As Integer i = Len(x1) Do While i>= 1 xt = xt + Mid(x1, i, 1) i=i-1 Loop y1 = xt End Sub Private Sub Form. Click() Dim s1 As String, s2 As String s1= "teacher" sub1 s1, s2 Print s2 End Sub 程序运行后,单击窗体,则窗体上显示的内容是A.rehcaetB.tahreeeC.themeeD.eerthea

写出程序运行的结果Public class BasePublic virtual string Hello() {return “Base”;}Public class Sub:BasePublic 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;

下面这个Sub过程的功能是统计字符串中“a”的个数,请在空白处填上合适的代码完成程序。Private Sub numCount()Dim hum As Integers$ = "software And hardware"num = Len(s$)For i = 1 To humb$=______If b$ = "a" Then x = x+1Next iPrint "x="; xEnd Sub

在窗体中添加一个名称为Commandl的命令按钮,然后编写如下程序: Public x As Integer Private Sub Commandl_click() x=10 Call s 1 Call s 2 MsgBOx x End Sub Pfivate Sub s1() x=x+20 End Sub Private SubA.10B.30C.40D.50

编写如下事件过程: Option Base 1 Private Sub Form Click() Dim x1()As Integer Dim i As Integer Dim s As Integer ReDim x1(3) For i = 1 To UBound(x1) x1(i)=i + 1 Next i Call sub1(x1) For i = 1 To UBound(x1) s = s + x1(i) Next i Print s End Sub Private Sub sub1(n()As Integer) Dim i As Integer ReDim Preserve n(5) For i = 3 To 5 n(i)=n(i-1)*2 Next i End Sub 程序运行后,单击窗体,则窗体上显示的内容是A.6B.12C.24D.47

在窗体中添加一个名称为Command1的命令按钮,然后编写如下程序: Public x As Integer Private Sub Command1_Click() x=10 Call s1 Call s2 MsgBox x End Sub Private Sub sl() x=x+20 End Sub Private Sub s2() Dim x As Integer x=x+20 End Sub 窗体打开运行后,单击命令按钮,则消息框的输出结果为( )。A.10B.30C.40D.50

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