When the television is good, nothing—not the theater, not the magazines, or newspapers—nothing is better. But when television is bad, nothing is worse. I invite you to sit down in front of your television set when your station goes on the air and stay there without a book, magazine, newspaper, or anything else to distract you and keep your eyes glued to that set until the station signs off. I can assure you that you will observe a vast wasteland. You will see a procession of game shows, violence, audience-participation shows, formula comedies about totally unbelievable families, blood and thunder, Mayhem, more violence, sadism, murder, Western badmen, Western goodmen, private eyes, Gangsters, still more violence, and cartoons. And endlessly, commercials that stream and cajole and offend. And most of all, boredom. True, you will see a few things you will enjoy. But they will be very, very few. And if you think I exaggerate, try it.
Is there no room on television to teach, to inform, to uplift, to stretch, to enlarge the capacities of our children? Is there no room for programs to deepen the children’s understanding of children in other lands? Is there no room for a children’s news show explaining something about the world for them at their level of understanding? Is there no room for reading the great literature of the past, teaching them the great traditions of freedom? There are some fine children’s shows, but they are drowned out in the massive doses of cartoons, violence, and more violence. Must these be your trademarks? Search your conscience and see whether you cannot offer more to your young beneficiaries whose future you guard so many hours each and every day.
There are many people in this great country, and you must serve all of us. You will get no argument from me if you say that, given a choice between a Western and a symphony, more people will watch the Western. I like Westerns and private eyes, too—but a steady diet for the whole country is obviously not in the public interest. We all know that people would more often prefer to be entertained than stimulated or informed. But your obligations are not satisfied if you look only to popularity as a test of what to broadcast. Yon are not only in show business: you are free to communicate ideas as well as to give relaxation. You must provide a wide range of choices, more diversity, more alternatives. It is not enough to cater to the nation’s whims—you must also serve the nation’s needs. The people own the air. They own it as much in prime evening time as they do at six o’clock in the morning. For every hour that the people give you--you own them something. I intend to see that your debt is paid with service.
Concerning programs for children, it may be inferred that the author believes that such programs should _____.
第二段，作者谈到了自己对儿童节目的见解，文中指出节目应该“提高孩子能力”，“加深对其他国家儿童的了解”，“向他们解释世界”，以及“教授伟大的文学作品和自由传统等知识”，这些涉及到文化教育范畴，选项B正确。
半不连续复制
简述糖异生的生理意义
同工酶
人体合成尿素的主要脏器是肝。( )
电子传递链中氧化与磷酸化偶联的部位是( )。
参与血红素合成的物质有( )。
胆固醇在体内的代谢产物是( )。
下列有关物质代谢描述正确的是( )。
DNA变性时发生的变化有( )。
合成DNA的原料有( )
