69 Broadcasting R.C. Dorf, Z. Wan, J.F. Lindsey I, D.F. Doelitzsch, J. Whitaker, M.S. Roden, S. Salek, A. H. Clegg Modulation and Demodulation. Radio. Television Systems. High-Definition Television. Digital Audio Broadcasting

I单项选择 1.抽样频率 a. sampling rate b. repetition rate c. sampling frequency 答案:c 2.数字通信 a. digital communication b. digital transmission. transmission path 答案:a

Let vs=100 cos a t V in the circuit shown in Fig. 9-12.(a) Find the equivalent parallel RLC circuit and then determine resonant frequency @r, Q, and v(t).(b) Find i, (t),i2(t), and i3(t) (c)Calculate the average power loss in the 10 kQ2 resistor and the maximum energy stored in the inductor

#include void maino int i,j, a[2 printf(“请输入二维数组的6个元素值:m”)

#include void maino for(i=l;i<=5;++) *外循环的次数为需打印的行数* for(=1j<=2*i-1j+)/*内循环的次数由所打印行数决定*

Section A Face to Face with Guns Section B Should I Have a Gun? Section C A Bank Robbery

I. Background Information II. Pre-reading Activities III. Text Analysis– Structure IV. Intensive reading V. Writing skill VI. Exercises

例设ay+bx2y+i(x3+cxy2)为解析函数,求a,b,c的值 解设f(z)=(ay3+bx2y)+i(x3+cxy2)=u+i

#include void maino int F100 char C=M. printf(\%d, %d\\n\, i, c);

第一章绪论 例:计算f=1!+2!+3+…+n,用C语言描述。 void factorsum(n int n: (int i, int f,: