The purpose of a receiver is to select a desired group of frequencies from one transmitter, get rid of all unwanted signals and noise, and then demodulate the signal to obtain the modulating infomation. The better the receiver does its job, the closer the demodulated sigmal will resemble the original signal from the transmitter. Regardless of the type of demodula

despair. Suddenly there was a flash of light in the distance. It was from the PLAs life raft. No light in the world was warmer the terrified victims, it was the glimmer of hope and the sunshine of love As for the best way to show love, the picture,I think, can still help a lot. Now

As a human being, one can hardl ve without love and that fact has been much love as possible, Because, with ev self-evident. With sincere or faithful love eryone showing a bit of love, our world you can easily get over the difficulties and will become warmer and more beautiful hardships you come across. Moreover

colorful life, the looser environment, yet From primary school to college, stu the more creative minds of the future stu dents, teachers and parents -all are dents. Our education, so to spea struggling for high scores. This is because bring up a new generation the current education system is not aimed at students' quality, but only at develop- tests. As a result

way too much to keep rear service run even more serious. With the enlargement of college enrollment, rear service falls far ning,and a serious waste of money and energy on rear service is always a heavy behind the need. At the same time, due burden which delays the development of to its large staff and consumption, it has

第七章社会主义改革和对外开放 练习题参考答案 一、单选题 1、(答案D)2、(答案D)3、(答案D)4、(答案A)5、(答案C)6、(答案D)7、(答案D)8、(答案C)9、(答案C)10、(答案D)11(答案A)12、(答案C)13、(答案C)

第十章建设中国特色社会主义文化 一、单项选择题 1、有中国特色社会主义文化建设的根本是:(A) A在全社会形成共同理想和精神支柱 B发展教育和科学 C营造良好的文化环境 D深化文化体制改革

effect. One is that, with the rapid growth POPULATION GROWTH of population, people need more and more land to grow crops, to build houses to live ND DOW'NS OF POPULATION GINWTH in. As a result, there is less and less land and space for the wildlife. Another impor- tant reason lies in the fact that a host of

disease, you should have it timely The desire for good health is univer As for me, I have always been taking sal. Especially nowadays, the possession care to have proper sleep and relaxation. of good health is regarded by nearly every have also been alert to any discomfort in one as essential to a happy life as well as a body. In my spare time I like run