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Tlevision 36 its first serious appearance in 1939, but it did not become common until the early 1950’s. Since then, innumerable children 37 in front of the set. However, many people now worry about the effect of TV on the young. They wonder there had never been 38 invention. Why are they so afraid？ Is television really harmful？Like almost anything else, television has its good as well as its bad sides. It has 39 joy and interest into the lives of the old, the sick, and the lonely. Without it, some of these people would have little pleasure and no window 40 the world.Unfortunately, some television programs have been extremely harmful to the young. Children do not have enough 41.They do not realize that TV programs often show an unreal world、Commercials lie in order to sell products that are sometimes bad or useless. Children believe them and want to 42 what they see on TV. They believe that they will make more friends if they use a certain soap—or some other product. They believe that the murders on TV 43 are normal and acceptable. By the time they are out of high school, most young people have watched about 15,000 hours of television, and have seen about 18,000 violent 44.If they see violent deaths every day, how can they be shocked by murder in real life？
Television has certainly changed our lives and our society. 45 its good points, it has brought many problems. We must find a solution to these problems because—whether we like it or not—television is here to stay.
36. A、brought
B、took
C、did
D、made
37. A、grew up
B、are growing up
C、have grown up
D、grow up
38. A、such
B、so an
C、such an
D、so
39. A、got
B、took
C、carried
D、brought
40. A、of
B、on
C、to
D、for
41. A、experiences
B、experience
C、experiencing
D、an experience
42. A、integrate
B、make
C、initiate
D、initiate
43. A、screens
B、faces
C、surfaces
D、appearances
44. A、dead
B、deaths
C、deads
D、death
45. A、Come with
B、With along
C、Upon with
D、Along with

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第1题

Questions 下列各 are based on the following passage. A day after the mobile phone celebrated its 40th birthday, Facebook has produced something that it hopes will make certain of the devices even more useful. On April 4th the giant social network 36 Home, new software that is designed to give it more prominence on mobile phones powered by Android, an operating system developed by Google. This matters because more and more folk are now accessing social networks from mobile devices rather than from desktop computers and because mobile advertising 37 are growing fast, albeit from a low base. Without a robust mobile 38 , Facebook could see some of its users siphoned off by rivals born in the mobile era. And it could miss out on a 39 massive source of new revenue. There had been 40 that Facebook was working on a phone of its own, or at least on a mobile operating system to rival Android or Apples IOS. But dabbling in hardware at this stage of its development would be a huge risk for Facebook and developing a rival operating system would risk 41 Apple and Google, whose mobile platforms have helped power its advertising growth, eMarketer, a research firm, 42 Facebook is on track to win 11% of the $13.6 billion likely to be spent around the world on mobile ads this year. Home, which is a group of Facebook apps, avoids both pitfalls. Among other things, it 43 a phones home screen (and lock screen) to Facebooks Newsfeed, allowing people to get updates on what their friends are doing without having to launch a 44 app each time they want news. A phone using Home will also notify you when your friends are doing something new, as well as alerting you to new data from other apps. Another feature is a tool called "Chat Heads" that 45 Facebooks message system to a phones regular SMS message offering. This means messages pop up on the home screen along with the senders profile picture, which is enclosed in a small circle. Questions 下列各 are based on the following passage.

Questions 下列各 are based on the following passage.

请回答（36）题__________.

请帮忙给出正确答案和分析，谢谢！

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第2题

On the 20th【D1】______ of the first official report on AIDS the head of the United Nations AIDS programme warns the deadly disease may only be at its early stages in many parts of the world. Dr. Piot has said that the disease has already reached the【D2】______【D3】______ since first being【D4】______ in 1981. 58 million people world-wide have【D5】______ the HIV virus,which causes AIDS, while 22 million have 【D6】______related【D7】______. The UN estimates the worlds HIV-【D8】______ population at 36 million, including 25 million in Sub-Saharan Africa. International officials warned that the disease would have【D9】______ political, social and economic【D10】______ in many developing countries.
【D1】

请帮忙给出正确答案和分析，谢谢！

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第3题

选词填空：For many Americans, 2013 ended with an unusually bitter cold spell.

　　Questions 36 to 45 are based on the following passage.

　　For many Americans, 2013 ended with an unusually bitter cold spell. November and December（36） early snow and bone-chilling temperatures in much of the country, part of a year when, for the first time in two（37）, record-cold days will likely turn out to have outnumbered record-warm ones. But the U.S. was the exception; November was the warmest ever （38）, and current data indicates that 2013 is likely to have been the fourth hottest year on record.

　　Enjoy the snow now, because （39）are good that 2014 will be even hotter, perhaps the hottest year since records have been kept. That’s because, scientists are predicting, 2014 will be an EI Niuo year.

　　EI niuo, Spanish for “the child”, （40） when surface ocean waters in the southern Pacific become abnormally warm. So large is the Pacific, covering 30% of the planet’s surface, that the（41 ）energy generated by its warming is enough to touch off a series of weather changes around the world. EI Ninos are （42）with abnormally dry conditions in Southeast Asia and Australia. They can lead to extreme rain in parts of North and South America, even as southern Africa（43） dry weather. Marine life may be affected too; EI Ninos can （44 ） the rising of the cold, nutrient-rich（营养丰富的）water that supports large fish （45）,and the unusually warm ocean temperatures can destroy coral(珊瑚).

选词填空：For many Americans, 2013 ended with an unusua

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第4题

下列关于FIR滤波器说法中正确的是()。

A、FIR滤波器有反馈支路，其单位脉冲响应是无限长的。

B、FIR滤波器没有反馈支路，其单位脉冲响应是无限长的。

C、FIR滤波器没有反馈支路，其单位脉冲响应是有限长的。

D、FIR滤波器有反馈支路，其单位脉冲响应是有限长的。

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第5题

FIR网络结构特点是什么，其系统函数和差分方程如何表示。

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第6题

FIR数字滤波器称为无限脉冲响应数字滤波器。（）

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错误

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第7题

线性相位FIR数字滤波器的单位脉冲响应应满足条件。()

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错误

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第8题

FIR滤波器不管是否线性相位都是稳定的。()

正确

错误

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第9题

具有线性相位的FIR滤波器不一定稳定的。()

正确

错误

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第10题

FIR数字滤波器与IIR数字滤波器比较，有什么特点?请列写两点或以上。

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第11题

对比FIR滤波器和IIR滤波器，()不存在内部反馈结构，所以系统永远稳定。

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