液化气中C1含量1.1%(V),C2含量是0,是什么原因?该样是否合格?
液化气中C1含量1.1%(V),C2含量是0,是什么原因?该样是否合格?
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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【 】。
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:DimaAsIntegerSubtest()a=a+1:b=b+1:c=c+1PrintSub:;a;,;b;,;cEndSubPrivateSubCommand1_Click()a=2:b=3:c=4CalltestCalltestEndSub程序运行后,单击命令按钮,窗体中将显示( )A.Sub:3,4,5Sub:4,5,6B.Sub:2,3,4Sub:2,3,4C.Sub:3,1,1Sub:4,1,1D.Sub:1,1,1Sub:1,1,1
(30)下列事件过程可以将打开文件对话框的标题改变为“new Caption”.A.Private Sub Commandl_Click() CommonDialog1.DialogTitle="new Caption" CommonDialog1.ShowFont End Sub B.Private Sub Commandl_Click() CommonDialog1.DialogTitle="new Caption" CommonDialog1.ShowOpen End Sub C.Private Sub Commandl_Click() CommonDialog1.DialogTitle="new Caption" CommonDialog1.ShowHelp End Sub D.Private Sub Commandl_Click() CommonDialog1.DialogTitle="new Caption" CommonDialog1.ShowColor End Sub
如下图所示的两个窗体:要使其中第一个窗体中的第一个命令按钮来控制显示第二个窗体,第二个命令按钮用来结束程序的运行(两个按钮名称为Command1和Command2)。则以下选项中,对这两个命令按钮编写的事件过程正确的是A.Private Sub Command1 Click() Form2.Show 1 End Sub Private Sub Command2_Click()End End SubB.Private Sub Command1_Click() Show 1 End Sub Private Sub Conunand2_Click() End End SubC.Private Sub Conmmand1_Click() Show 1 End Sub Private Sub Command2_Click() End End SubD.Private Sub Command1_Click()Show 1, Form2 End SubPrivate Sub Command2_Click() End End Sub
窗体Form1上有一个名称为Command1的命令按钮,以下对应窗体单击事件的事件过程是( )。A.Private Sub Form1 Click( )End Sub···B.Private Sub Form1. Click( )End Sub···C.Private Sub Command1 click( )End Sub···D.Private Sub Command Click( )End Sub···
在窗体中添加一个命令按钮,编写如下程序: Private Sub Subl(p,m,n) p=p+1:m=m+1:n=n+1 Print"subl:";p;m;n End Sub Private Sub Command1_Click() al=1:b=2:c1=3 Call Subl(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
下列Sub 过程中描述错误的是______。A.Sub 过程只能在窗体模块中定义B.Goto 语句不能用于Sub 过程C.Sub 过程只能在窗体模块中定义D.Sub 过程中不能嵌套定义Sub 过程
假定有如下的Sub过程:Sub Sub1(x As Single,y As single)t=xx=t/yy=t Mod yEnd 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 SingleDim b As Singlea=5b=4Sub1 a,bPrint a;bEnd Sub程序运行后,单击命令按钮,输出结果为A.B.C.D.
在窗体中添加一个命令按钮,编写如下程序: Private Sub Test(p,m,n) p=p+1:m=m+1:n=n+1 Print "Sub: ";p;m;n End Sub Private Sub Command1.Click() a1=1:b=2:c1=3 Call Test((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
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+1Print "sub1:";p;m;nEnd SubPrivate Sub Command1_Click()a1=1:b=2:c1=3Call Sub1(a,b1+3,c1)Print"Main:";a1;b1;c1End 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
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
窗体Form. 1上有一个名称为Command 1的命令按钮,以下对应窗体单击事件的事件过程是A)Private Sub Form. 1_Click() B)Private Sub Form. _Click()End Sub End SubC)Private Sub Commandl_Click() D)Private Sub Command_ Click()End Sub End Sub
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.
设当前目录是根目录,使用第()组命令不能在一级子目录SUB1下建立二级子目录SUB11。A、CD SUB1(回车)MD SUB11B、MD SUB1/SUB11C、MD SUB11D、MD/SUB1/SUB11
把C盘路径为/SUB1的文件ASD.BAK更名为ASD,下面()命令是正确的。A、REN C://SUB1/ASD.BAK C:///SUB1/ASDB、REN C:///SUB1/ASD.BAK C://ASDC、RENAME C:///SUB1/ASD.BAKD、REN C:///SUB1/ASD.BAK ASD
单选题变直径圆管流,细断面直径d1,粗断面直径d2=2d1,粗细断面雷诺数的关系是( )。ApResub1/sub=0.5Resub2/sub/pBpResub1/sub=Resub2/sub/pCpResub1/sub=1.5Resub2/sub/pDpResub1/sub=2Resub2/sub /p
单选题用HCl滴定NaOH和Na2CO3混合液,首先加入用酚酞指示剂,消耗HCl体积V1,之后用甲基橙指示剂,消耗HCl体积V2,则V1和V2的关系是:A Vsub1/subVsub2 /sub /pB Vsub1/subVsub2/sub /pC Vsub1/sub=Vsub2/sub /pD 不能确定
多选题下列扩展不确定度的表示中,表示形式是正确的是____。ApUsub95/sub=1%(vsubeff/sub=9)/pBpUsubr/sub=1%(k=2)/pCpusubCr/sub=0.5%/pDU=±0.5%(k=1)
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.
单选题永续盘存法公式为()AKsubt/sub+1=Isubt/sub-(1-δ)Ksubt/subBKsubt/sub+1=It+(1-δ)Ksubt/subCKsubt/sub+1=Isubt/sub+(1+δ)Ksubt/subDKsubt/sub+1=Isubt/sub-(1+δ)Ksubt/sub
单选题酶促反应速度(v)达到最大反应速度(Vmax)的80%时,底物浓度[S]为Ap1Ksubm/sub/pBp2Ksubm/sub/pCp3Ksubm/sub/pDp4Ksubm/sub/pEp5Ksubm/sub/p
单选题下列测量结果的表示中,错误的是()。ApIsubS/sub=10.0413A,Usubrel/sub=5×10sup-5/sup,k=2 /pBpIsubS/sub=10.0413(1±5×10sup-5/sup)A,k=2 /pCpIsubS/sub=(10.0413±5×10sup-5/sup)A,k=2 /pDpIsubS/sub=10.0413A,Usub95rel/sub=5×10sup-5/sup,Vsubeff/sub=9 /p
单选题正态分布时,算术平均数、中位数、众数的关系为()Amsub0/sub<msube/sub<(xBmsub0/sub=msube/sub=(xCmsub0/sub>msube/sub>(xDmsube/sub<msub0/sub<(x
多选题下列表示中____的表示形式是正确的。ApUsub95/sub= 1%,vsubeff/sub =9 /pBpUsubr/sub= 1%,k=2 /pCpusubC/sub=0. 5% /pDpusubC/sub=±0 5%.k=1 /p
单选题( )被称为广义货币。ApMsub0/sub/pBpMsub1/sub/pCpMsub2/sub/pDpMsub3/sub/p