某供电回路计算电流为Ic＝300A，采用导线允许载流In＝320A，回路中最大的一台电动机额定电流为INm＝100A，启动电流倍数I*为INm的5倍，若采用DW10低压断路器，请选择开关的额定电流，整定瞬时脱扣电流，校验与导线的配合。
某供电回路计算电流为Ic＝300A，采用导线允许载流In＝320A，回路中最大的一台电动机额定电流为INm＝100A，启动电流倍数I*为INm的5倍，若采用DW10低压断路器，请选择开关的额定电流，整定瞬时脱扣电流，校验与导线的配合。
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【 】。
以下能够正确计算n!的程序是（ ）。A．Private Sub Command1_Click（）n=5: x=1Dox=x * II=I + 1Loop While I nPrint xEnd SubB．Private Sub Command1_Click（）n=5: x=1: I=1Dox=x * II=I + 1Loop While I nPrint xEnd SubC．Private Sub Command1_Click（）n=5: x=1: I=1Dox=x * II=I + 1Loop While I =nPrint xEnd SubD．Private Sub Command1_Click（）n=5: x=1: I=1Dox=x * II=I + 1Loop While I nPrint xEnd Sub
有以下程序： Sub subP(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(i)＝5 a(2)＝6 a(3)＝7 a(4)＝8 subP a() For i＝1 To 4 Print a(i) Next i End Sub 运行上面的程序，单击命令按钮，输出结果为______。A． 2 4 6 8B．5 6 7 8C．10 12 14 6D．出错
有以下程序： Sub subP(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 subPa() For i=1 To 4 Print a(i) Next i End Sub 运行上面的程序，单击命令按钮，输出结果为( )A．2 4 6 8B．5 6 7 8C．10 12 14 16D．出错
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。
数组A在子过程或函数中定义为形参,正确的语句是( )。 A、Private Sub sele(ByVal A( ) As integer)B、Private Function sale(A() As Integer) As StringC、Private Sub sale(A() As Integer) As IntegerD、Private Sub sale(A(i) As Integer)
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
以下能够正确计算n!的程序是A．Private Sub Command1 Click() 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=1 Do X=X*I I=I + 1 Loop While I ＜n Print x End SubC．Private Sub Command1_Click() n=5：X=1：I=1 Do X=X * I I=I + 1 Loop While I＜=n Print X End SubD．Private Sub Command1_Click() n=5：X=1：I=1 Do x=x * I I=I + 1 Loop While I＞n Print X End Sub
以下程序的运行结果是( ) #define MAX 10 int a[MAX]，i; main() { printf("\n");sub1()；sub3(A) ,sub2()，sub3(A) ； } sub2() { int a[MAX]，i，max； max=5； for(i=0；i＜max；i++)a[i]＝i； } sub1() {for(i=0;i＜MAX；i++)a[i]＝i+i; } sub3(int a[]) { int i; for(i=0;i＜MAX，i++)printf("%d"，a[i])； printf("\n")； }A．0 2 4 6 8 10 12 14 16 18 0 1 2 3 4B．0 1 2 3 4 0 2 4 6 8 10 12 14 16 18C．0 1 2 3 4 5 6 7 8 9 0 1 2 3 4D．0 2 4 6 8 10 12 14 16 18 0 2 4 6 8 10 12 14 16 18
设有如下程序： Private Sub search(a()As Variant，ByVal key As Variant，index%) Dim I％ For I = Lbound(a)To Ubound(A)If key=a(I)Then index=I Exit Sub End If Next I index=-1 End Sub Private Sub Form_Load() Show Dim b()As Variant Dim n As Integer b=Array(21，64，92，15，72，38，45，72) Call search(b， 45， n) Print n End Sub 程序运行后，输出的结果是A．2B．6C．10D．12
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
有过程如下：Sub fact (m As Integer, total As Long) Dim i As Integer total = 1 for i = 1 To m total = total*i Next iEnd Sub调用它的事件过程如下：Private Sub Command1_ Click () Dim tot As Long Dim a As Integer a = Val InputBox (“请输入数据”)) Call fact (a, tot) Print totEnd Sub则输入数据5，运行结果为 ______。A．100B．120C．200D．50
以下能够正确计算1+2+3+…+10的程序是A．Private Sub Command1_Click() Sum=0 ForI=1 To 10 Sum=Sum+I Next I Print Sum End SubB．Private Sub Command1_Click() Sum=0，I=1 Do While I＜=10 Sum=Sum+I I=I+1 Print Sum End SubC．Private Sub Command1_Click() Sum=0： I=1 Do Sum=Sum+I I=I+1 Loop While I＜10 Print Sum End SubD．Private Sub Command1_Click() Sum=0： I=1 Do Sum=Sum+I I=I+1 Loop Until I＜10 Print Sum End Sub
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
有程序如下: Sub subP(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 subP a() For i=1 To 4 Print a(i) Next i End Sub运行上面程序，单击命令按钮，输出结果为______ 。A． 2 4 6 8B．5 2 2 2C．10 12 14 16D．出错
在窗体上画一个命令按钮，然后编写如下事件过程： Sub BTC(old Copy( ) As Integer，new Copy( ) As Integer) Dim i AS Integer For i=LBound(oldCopy( ))To UBound(oldCopy( )) newCopy(i)=oldCopy(i) Next i End Sub Private Sub Command1 _ Click( ) Dimm(10) As Integer，n(10)As Integer For i=1 To 10 m(i) =i*i Next i Call BTC(m，n) Print n(5) End Sub 程序运行后，单击命令按钮输出结果为A．0B．2C．10D．25
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
以下能够正确计算n!的程序是______。A．Private Sub Commeadl_Click() 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=1 Do x=x*i i=i+1 Loop While i＜n Print x End SubC．Private Sub Command1_Click() n=5: x=1: i=1 Do x=x*i i=i+1 Loop Whilei＜=n Print x End SubD．Private Sub Commsndl_Click() n=5: x=1: i=1 Do x=x*i i=i+1 Loop While i＞n Print x End Sub
以下能够正确计算n!的程序是( )。A．Pfivate Sub Commgld1_LClick() n=5:x=1 Do x=x*1 i=i+1 Loop Whilei＜nB．Private Sub Command1_Click() n=5:x=1:i=1 Do x=x*1 i=i+1 Loop Whilei＜n Print x End SubC．Pfivate Sub Command1_ C1ick() n=5:x=1:i=1 Do X=X*1 i=i+1 Loop While i＜=nD．Private Sub Command1_C1ick() n=5:x=1:i=1 Do X=X*1 i=i+1 Loop While i＞n Print x End Sub
以下能够正确计算1+2+3+…+10的程序是A．Private sub Command1_Click( ) sum=0 For 1=1 To 10 Sum=sum+1， Next I Print Sum End SubB．Private sub Command1_Click( ) Sum=0,I=1 Do While l＜=10 Sum=Sum+1 I=I+1 Print Sum End SubC．Private Sub command1_click( ) Sum=0：I=1 Do Sum=Sum+1 I=I+1 Loop While I＜10 Print Sum End SubD．Private Sub command1_Click( ) Sum=0：I=1 Do Sum=Sum+1 l=I+1 Loop Until I＜10 Print Sum End Sub
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
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”
单选题根据《环境影响评价技术导则大气环境》，以下评价等级正确的是（ ）A pPsubmax/sub≥10%为一级评价/pB pPsubmax/sub≥80%为一级评价/pC pPsubmax/sub≤10%为三级评价/pD p 10%≤Psubmax/sub≤80%为二级评价/p