三极管3DG4的PCM=300mW,IC=10mA,管子的工作电压UCE等于()V。A、30B、10C、3000D、300

三极管3DG4的PCM=300mW,IC=10mA,管子的工作电压UCE等于()V。

  • A、30
  • B、10
  • C、3000
  • D、300

相关考题:

有一过程如下:Sub Sub1(m As Integer,total As Long)Dim i As Integertotal=1For i=1 To mtotal=total*iNextEnd Sub调用它的事件过程如下:Private Sub Command1_Click()Dim tot As Long,a As Integera=Val(InputBox("请输入数据"))Call Sub1(a,tot)Print totEnd Sub则输入数据5,运行结果为【 】。

(16)在窗体上画一个命令按钮,其名称为Commandl.程序运行后,单击命令按钮,输出结果是 Private Sub p1(n As Integer) For i=n To 1 Step -1 x=String(i,"*") Print x Next i End Sub Private Sub Commandl_Click() P1(3) End SubA.*** ** *B.* ** ***C.* * *D.******

阅读程序: Sub p( b () As Integer)For i =1To 4 b(i) = 2(iNext i End Sub Private Sub Command1_Click()Dim a (1 To 4) As Integer a(1)=5 a(2)=6 a(3)=7 a(4)=8 call p (a) For i=1 To 4 Print a(i) Next iEnd Sub运行上面的程序,单击命令按钮,输出结果为。

下面程序:________Option Base 1Private Sub Command1_Click() Dim a(10),p(3)As Integer Dim i,k As Integer k=5 For i=1 To 10 a(i)=i Next For i=1 To 3 p(i)=a(i*i) Next For i=1 To 3 k=k+p(i)*2 Next Print kEnd Sub运行后的输出结果为________。A.33B.28C.35D.37

在窗体上有一个命令按钮Commandl,编写事件代码如下:Private SuB commandl_Click()Dim a(10),p(3)As Integerk=5For i=1 To 10a(i)=i+iNext iFor i=1 To 3P(i)=a(i*i)Next iFor i=1 To 3k =k+p(i)*2Next iMsgBox kEnd SuB打开窗体运行后,单击命令按钮,消息框中输出的结果是【 】。

设程序中有如下数组定义和过程调用语句: Dim a(10)As Integer … Call D(a) 如下过程定义巾,正确的是( )。A.Private Sub p(a As Integer)B.Private Sub p(a( )As Integer)C.Private Sub p(a(10)As Integer)D.Private Sub p(a(n)As Integer)

在窗体画一个命令按钮,然后编写如下事件过程:Private Sub Command1_CIick()Dim a(1 To 10)Dim p(1 To 3)k=5For i =1 To 10a(i)=iNext iFor i=1 To 3p(i)=a(i*i)Next iFor i=1 To 3k=k+p(i)*2Next iPrint kEnd Sub程序运行后,单击命令按钮,输出结果是【 】。

在窗体中添加一个名称为Com1的命令按钮,然后编写如下程序:Private Sub s(ByVal p As Integer)p=p*2End SubPrivate Sub Com1_Click()Dim i As Integeri=3Call s(i)If i>4 Then i=i^2End sub窗体打开运行后,单击命令按钮,则消息框的输出结果为( )。

单击一次命令按钮后,下列程序的执行结果是 Private Sub Command1_Click() s=P(1) +P(2) +P(3) +P(4) Print s End Sub Public Function P(N As Integer) Static Sum For i=1 To N Sum=Sum+i Next i P=Sum End FunctionA.15B.25C.35D.45

在窗体上画一个命令按钮,然后编写如下事件过程: Private Sub Commandl_Click() Dim m As Integer, n As Integer, p As Integer m=3: n=5: p=0 Call Y(m, n, p) Print Str(p) End Sub Sub Y(ByVal i As Integer, ByVal j As Integer, k As Integer) k=i+j End Sub 程序运行后,如果单击命令按钮,则在窗体上显示的内容是( )A.4B.6C.8D.10

有如下函致: Function fact(x As Integer)As Long Dim p As Long,i As Integer p=1 For i=1 To x p=p*1 Next fact=p End Function 调用它的事件过程如下: Private Sub Command1_Click() i=Val(Inputbox("请输入数据")) a=fact((i)) Print a End Sub 若输入数据5,则运行结果为A.120B.60C.80D.100

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:Private Sub s(ByVal p As Integer)p=p*2End SubPrivate Sub Command1_click()Dim i As Integeri=3Call s(i)If i>4 Then i=i^2MsgBox iEnd Sub窗体打开运行后,单击命令按钮,则消息框的输出结果为【 】。

执行下面的程序,消息框的输出结果是 【 】。Option BaselPrivate Sub Commandl Click()Dim a(10),P(3)As Integerk=5For i=1 To 10a(i)=iNext iFor i=1 To 3P(i)=a(i*i)Next iFor i=1 To 3k=k+p(i)*2Next iMsgBox kEnd sub

单击一次命令按钮之后,下列程序代码的执行结果为 private Sub Command1_Click() S=P(1) +P(1)+P(2)+P(3)+P(4) Print S: End Sub Public Function P(N As Integer) Static Sum For I=1 To n Sum=Sum+I Next 1 P=Sum End FunctionA.20B.35C.115D.135

设程序中有如下数组定义和过程调用语句:Dim a(10) as integer……Call p(a)如下过程定义中,正确的是A)Private Sub p(a as integer)B)Private Sub p(a() as integer)C)Private Sub p(a(10) as integer)D)Private Sub p(a(n) as integer)

执行下面的程序,消息框的输出结果是【 】。Option Base1Private Sub Command1_Click( )Dim a(10),P(3)As Integerk=5For i=1 To 10a(i)=iNext iFor i=1 To 3P(i)=a(i*i)Next iFor i=1 To 3k=k+p(i)*2Next iMsgBox kEnd sub

在窗体上添加如下命令按纽,然后编写如下事件过程: Private Sub Command1_Click() Dim a(10)As Integer Dim p(3)As Integer k= 5 For i = 1 To 10 a(i) = i Next i For i = 1 To 3 p(i) = a(i * i) Next i For i = 1 To 3 k = k + p(i) * 2 Next i Print k End Sub该过程的运行结果为______。A.35B.33C.31D.29

若有如下程序: sub(p,n) int(*p)[3],n; { int i; for(i=0;i<=n;i++) printf("%d",*(*(p+i)+n)); } main() {int s[3][3]={1,2,3,4,5,6,7,8,9}; sub(s,2); } 则程序运行后的输出结果是( )A.3 6 9B.2 4 8C.4 5 6D.7 8 9

以下能够正确计算n!的程序是( )。A.Private Sub Commandl_C1ick()B.hiVate Sub Commandl_C1ick() n=5:x=1 n=5:x=1:i=1 DO DO X=x*1 X=X*1 i=i+1 i=i+1 Loop while i<n Loop While<n Print x Ptinte x End Sub End SubC.Private Sub Commandl_Click ()D.Pdvate Sub Commandl C1ick() n=5:X=1:i=1 n=5=:x=1:i=1 DO DO X=X*1 X=X*1 i=i+1 i=i+1 Loop While i>n Print x Print x End Sub End Sub

在窗体中添加一个命令按钮,编写如下程序: Private Sub Sub1(p,m,n) p=p+1:m=m+1:n=n+1 Print "sub1:";p;m;n End Sub Private Sub Command1_Click() a1=1:b=2:c1=3 Call Sub1(a,b1+3,c1) Print"Main:";a1;b1;c1 End Sub 程序运行后,输出结果为A.Sub: 2 6 4 Main: 2 6 4B.Sub: 2 6 4 Main: 2 6 4C.Sub: 2 6 4 Main: 1 2 3D.Sub: 2 6 4 Main: 2 2 3

阅读程序 SUB P(B( ) AS INTEGER) FOR I=1 TO 4 B(I) =2*I NEXT I END SUB PRIVATE SUB COMMAND1_CLICK( ) DIM A( 1 TO 4) AS INTEGER A(1)=5 A(2) =6 A(3) =7 A(4) =8 P A( ) FOR I = 1 TO 4 MSGBOX A(I) NEXT I END SUB 运行上面的程序,单击命令按钮COMMAND1后,消息框4次输出的内容分别是( )。A.出错B.10, 12, 14, 16C.5, 6, 7, 8D.2, 4, 6, 8

在窗体上画一个命令按钮,然后编写如下事件过程:Private Sub Commandl_Click()Dim a (1 To 10)Dim p(1 To 3)k=5For i=1 To 10a(i)=iNextiFori=1 To 3p(i)=a(i*i)Next iFor i=1 To 3k=k+p(i)*2Next iPrint kEnd Sub程序运行后,单击命令按钮,输出结果是【 】。

class Super {  public int i = 0;  public Super(String text) {  i = 1; }  }  public class Sub extends Super {  public Sub(String text) {  i = 2;  }   public static void main(String args[]) {  Sub sub = new Sub(“Hello”);  System.out.println(sub.i);  }  }  What is the result?()  A、 0B、 1C、 2D、 Compilation fails.

单选题class Super {  public int i = 0;  public Super(String text) {  i = 1; }  }  public class Sub extends Super {  public Sub(String text) {  i = 2;  }   public static void main(String args[]) {  Sub sub = new Sub(“Hello”);  System.out.println(sub.i);  }  }  What is the result?()A 0B 1C 2D Compilation fails.

单选题A pIsub2/sub=Isub3/sub/pB pIsub2/sub=4Isub3/sub/pC pIsub2/sub=2Isub3/sub/pD pIsub3/sub=4Isub2/sub/p

单选题class super (   public int I = 0;   public super (string text) (   I = 1   )   )     public class sub extends super (   public sub (string text) (   i= 2   )   public static void main (straing args) (  sub sub = new sub (“Hello”);   system.out. PrintIn(sub.i);  )   )   What is the result?()A Compilation will fail.B Compilation will succeed and the program will print “0”C Compilation will succeed and the program will print “1”D Compilation will succeed and the program will print “2”

单选题( )被称为广义货币。ApMsub0/sub/pBpMsub1/sub/pCpMsub2/sub/pDpMsub3/sub/p