I1 = 2A,I 2= -5A,I4 = 10A,I3=()[img=294x228]17e0b65a77e05bb.jpg[/img]
A: -3A
B: 3A
C: 7A
D: 0A
A: -3A
B: 3A
C: 7A
D: 0A
举一反三
- 图示电路中,已知 I 1 = 4A,I 2 = -2A,I 3= 1A,I 4= -3A,I 5
- 设随机变量X的分布函数为[img=401x177]1803b3b76a88610.png[/img]这里a>0,则E(X)= A: 3a/2 B: 5a/2 C: 2a/3 D: 3a/5
- Public Sub Proc(a%( )) Static i% Do a(i) = a(i) + a(i + 1) i = i + 1 Loop While i < 2 End Sub Private Sub Command1_Click( ) Dim m%, i%, x%(10) For i = 0 To 4: x(i) = i + 1: Next i For i = 1 To 2: Call Proc(x): Next i For i = 0 To 4: Print x(i);: Next i End Sub A: 3 4 7 5 6 B: 3 5 7 4 5 C: 2 3 4 4 5 D: 4 5 6 7 8
- 已知下图I=3A,R1=1Ω,R2=2Ω,则I1=()A。 A: 3 B: 1 C: 2 D: 0
- 以下程序段实现的输出是()。for(i=0;i<;=9;i++)s[i]=i;for(i=9;i>;=0;i--)printf("%2d",s[i]);[/i][/i] A: 9 7 5 3 1 B: 1 3 5 7 9 C: 9 8 7 6 5 4 3 2 1 0 D: 0 1 2 3 4 5 6 7 8 9