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

#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*

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

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

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);

#include #defineN 5 void maino int i, numberING float scoreNI, ave, sum=0 printf(“请输入五名学生的学号和成绩:Ⅶn)