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二阶电路出现等幅振荡时必有XL=XC,电路总电流只消耗在电阻上。
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有以下程序:Private Sub Form_Activate()For j=1 to 3x=3For i=l to 2x=x+6NextNextPrint xEnd Sub程序运行后,窗体上显示的结果为______。
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单击命令按钮时,下列程序的执行结果是Private Sub Command1_Click()BT 4End SubPrivate Sub BT(x As Integer)x=x * 2 + 1If x 6 ThenCall BT(x)End Ifx=x * 2Print x;End Sub( )。A.15B.16C.17D.18
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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%)
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阅读下列程序。Option Base 1Private Sub Form. Click()Dim x(3,3)For j=l to 3For k=l to 3If j=k then x(j,k)=lIf j<>k then x(j,k)=kNext kNext jCall fun(x())End SubPrivate Sub fun(x() )For j=1 to 3For k=1 to 3Print x(j,k);Next kNext jEnd Sub运行程序时,输出结果为【 】
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下面各被调用函数首部书写正确的是( )A.void sub(float x;float y);B.void sub(float x,y)C.void sub(float x,float y)D.void sub(float x,float y);
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以下能够正确计算n!的程序是A.Private Sub Command1_Chck( ) n=5:x=1 Do x=x*i i=i+1 Loop While i<n Print x End SubB.Private Sub Command1_Click( ) n=5:x=1:i=l Do x=x*i i=i+1 Loop While i<n Print x End SubC.Private Sub Command1_Click( ) n=5:x=1:i=l Do x=x*i i=i+1 Loop While i<=n Print x End SubD.Private Sub Command1_Click( ) n=5:x=1:i=l Dox=x*i i=i+1 Loop While i>n Print x End Sub
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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
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有以下程序:int sub(int n) { return(n/10+n%10); }main(){ int x, y;scanf("% d", x);y=sub(sub(sub(x)));printf("% d\n", y);}若运行时输入:1234<回车>,程序的输出结果是【 】。
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以下能够正确计算n! 的程序是( )。A.Private Sub Command1_Click( ) n=5:x=l Do x=x*i i=i+1 Loop While i < n Print x End SubB.Private Sub Command1_Click( ) n=5:x=1:i=1 Do x=x*i i=i+1 Loop While i < n Print x End SubC.Private Sub Command1_Cliek( ) n:5:x=1:i=1 Do x=x* i i:i+1 Loop While i < = n Print x End SubD.Private Sub Command1_Cliek( ) n=5:x:1:i=1 Do x=x*i i=j+1 Loop While i > n Print x End Sub
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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);
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执行下面程序,第一行输出结果是【 】,第二行输出结果是47。Option ExplicitPrivate Sub Form_Click( )Dim A As IntegerA=2Call Sub1 (A) End SubPrivate Sub1 (x As Integer)x=x*2+1If x<10 ThenCall Sub1 (x)End Ifx=x*2+1Print xEnd Sub
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单击命令按钮时,下列程序的执行结果是 Private Sub Command1_Click() BT 4 End Sub Private Sub BT(x As Integer) x=x*2+1 If x<6 Then Call BT(x) End If x=x*2 Print x; End SubA.15B.16C.17D.18
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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
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Whichofthefollowingcommandscanbeusedtogainrootprivilegesandprofilewithoutinitiallylogginginasroot?()
A.suB.surootC.su-rootD.su-croot
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单击命令按钮时,下列程序的执行结果是 Private Sub Book(x As Integer) x=x * 2 + l If x<6 Then Call Book(x) End If X=X * 2 + 1 Print x; End Sub Private Sub Command2_Click() Book2 End SubA.23 47B.10 36C.22 44D.24 50
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单击命令按钮,下列程序的执行结果是 Private Sub Blck (x As Integer) x = x * 2 + l If x <6 Then Call Blck(x) End If x = x * 2 + 1 Print x; End Sub Private Sub Commandl_Click() Blck 2 End SubA.23 47B.10 36C.22 44D.24 50
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单击命令按钮时,下列程序的执行结果为 Private Sub Command1_Click( ) Dim x As Integer,y As Integer x=50:y=78 Call PPP(x,y) Print x;y End Sub Public Sub PPP(ByVM n As Integer,ByVal m As Integer) n=n\l0 m=m\l0 End SubA.08B.50 78C.450D.78 50
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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
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单击命令按钮时,下列程序的执行结果是 Private Sub Commandl_Click( ) BT 4 End Sub PriVate Sub BT(x As Integer) X=X * 2 + 1 If x <6 Then Call BT(x) End If X=x * 2 Print x; End SubA.15B.16C.17D.18
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有如下Sub过程:Sub ind(a As Integer)Static x As Integerx= x + aPrint x:End Sub以下是调用它的事件过程,程序运行后,单击命令按纽Command1三次,输出结果为【 】。Private Sub Command1_Click()Ind 2End Sub
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以下定义的过程()是按“传值”方式传递参数的。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%)
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下列定义abc过程的语句,正确的是()A、Dim Sub abc(x,y)B、Public abc(x,y)C、Private Sub abc(x,y)As IntegerD、Sub abc(x,y)
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单选题给定下列FORTRAN子程序如下: SUBROUTINE SUB(K,A) A=SQRT(K*K+1.0) END 下列调用语句中正确的是()A
CALL SUB(N,N)B
CALL SUB(X,X)C
CALL SUB(N,X*X)D
CALL SUB(11,X)
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单选题正态分布时,算术平均数、中位数、众数的关系为()A
msub0/sub<msube/sub<(xB
msub0/sub=msube/sub=(xC
msub0/sub>msube/sub>(xD
msube/sub<msub0/sub<(x
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单选题给定子例行程序如下 SUBROUTINE SUB(K,A) B=K+2 A=A+B END 下列调用语句中正确的是()A
CALL SUB(N,N)B
CALL SUB(X,X)C
CALL SUB(N+2,X)D
CALL SUB(N,X+3)
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