网友您好, 请在下方输入框内输入要搜索的题目:
题目内容
(请给出正确答案)
在考虑放大电路的频率失真时,若vi为正弦波,则vo()
- A、有可能产生相位失真
- B、有可能产生幅度失真和相位失真
- C、一定会产生非线性失真
- D、不会产生线性失真
参考答案
更多 “在考虑放大电路的频率失真时,若vi为正弦波,则vo()A、有可能产生相位失真B、有可能产生幅度失真和相位失真C、一定会产生非线性失真D、不会产生线性失真” 相关考题
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【 】。
考题
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。
考题
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)
考题
一基本共射放大电路如题图所示,已知VCC=12V,RB=1.2MΩ,RC=2.7kΩ,晶体管的β=100,且已测得γbe=2.7kΩ。若输入正弦电压有效值为27mV,则用示波器观察到的输出电压波形是下列哪种?( )
A. 正弦波
B. 顶部削平的失真了的正弦波
C. 底部削平的失真了的正弦波
D. 底部和顶部都削平的梯形波
考题
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.
考题
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.
考题
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A
p1Ksubm/sub/pB
p2Ksubm/sub/pC
p3Ksubm/sub/pD
p4Ksubm/sub/pE
p5Ksubm/sub/p
考题
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”
考题
单选题在放大电路失真时,若输入信号为正弦波,则输出信号( )。[2006年真题]A
会产生线性失真B
会产生非线性失真C
为正弦波D
为非正弦波
热门标签
最新试卷