从各种阻力效应公式PI、PII、PIII分析,你认为减小气阻、液阻(贾敏效应)的方法有哪些?

从各种阻力效应公式PI、PII、PIII分析,你认为减小气阻、液阻(贾敏效应)的方法有哪些?


相关考题:

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

(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

运行以下程序后,输出结果为_____________。 Private Sub Command1_Click() a=1:b=2:c=3 Call test(a,b+3,(c)) Print "main:";a;b;c End Sub Private Function test(p,m,n) p=p+1:m=m+1:n=n+1 Print "sub:";p;m;n End Function:A. sub:2 6 4 main:1 2 3B. sub:2 6 4 main:2 2 3C. sub:2 6 4 main:2 6 4D. sub:2 6 4 main:1 6 4

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)

下列程序的执行结果是______。PrivateFunctionP(NASInteger)Fori=1 To NSUM=SUM+iNextiP=SUMEnd FunctionPrivte Sub Commandl_Click()S=P(1)+P(2)+P(3)+P(4)Print SEnd Sub

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

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

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

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

单选题下列表示测量不确定度的符号中,正确表示相对扩展不确定度的是( )。ApUsubrel /sub /pBpusubrel /sub /pCpUsubp /sub /pDpusubref/sub /p

单选题下列测量不确定度符号中,表示合成标准不确定度的是( )。ApUsub95rel/sub/pBpUsubc/sub/pCpusubc/sub/pDpUsubrel/sub/p

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

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

多选题设up为标准正态分布的p分位数,则有(  )。Ausub0.49/sub>0 Busub0.3/sub<usub0.4 /subCusub0.5/sub=0 Dusub0.23/sub=-usub0.77 /subEusub0.5/sub=-usub0.5/sub

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

单选题明确规定包含概率p时,扩展不确定度的符号是( )。ApUsubp/sub/pBpUsubr/sub/pCpusubc/sub/pDU