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若两电对的电子转移数n1=2,n2=1,问要使氧化还原反应定量完全进行,要求两个电对条件电
![若两电对的电子转移数n1=2,n2=1,问要使氧化还原反应定量完全进行,要求两个电对条件电位差或条件](https://img2.soutiyun.com/ask/2020-11-16/974370338742817.png)
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Private Sub Form_Click()
Dim N%, N1%, N2%, I%, K1%, K2%
N = Val(InputBox("输入大于6的偶数"))
For N1 = 3 To N / 2 Step 2
K1 = ----1---
For I = 2 To K1 '判断N1是否是素数
If N1 Mod I = 0 Then ----2----
Next I
If I > K1 Then
N2 = ----3----
K2 = Int(Sqr(N2))
For I = 2 To K2
If N2 Mod I = 0 Then Exit For
Next I
If I > K2 Then Print N & "=" & N1 & "+" & N2
End If
End If
Next N1
End Sub
若i1=2i2,n1=n2/2,则当P相同时,()。
A.(F/P,i1,n1)<(F/P,i2,n2)
B.(F/P,i1,n2)=(F/P,i2,n2)
C.(F/P,i1,n1)>(F/P,i2,n2)
D.不能确定(F/P,i1,n1)与(F/P,i2,n2)的大小
A.(M1,N2)
B.(M2,N1)
C.(M2,N2)
D.(M1,N1)
试证明下列命题。
① 可控性矩阵的秩为n1<n2,证明:
②对n维单输入-单输出系统,证明:若(A,b)可控,则一定存在行向量c,使得(A,c)可观测。
③对n维单输入-单输出系统(A,b,c) ,证明:
A、n1-1
B、n1+n2+n3
C、n2+n3+n4
D、n1