家庭影院中VCD将音乐信号输送给“功放”再到音箱发出美妙的声音，这一过程中“功放”起到改变______的作用（选填“响度

一、
With the populaization of home theatre,less and less people want to watch movie in the cinema.And diffferent people have different attitude towards this phenomemon.Some people think that the home theatre is so convinient that we can watch movie at home.And other people think that there's many good TV shows can meet our needs , so why bother to go out for a movie ? As far as I'm concern,nothing can be better that we stay at home for relase while finished one day heavey work and enjoy with our family ,witch lead to the less people watch movie outsides.
二、
Although the development of media now very quickly, but there are still many people reading newspaper.And different people read different newspaper.For example,the one who like sports would choice the paper about sports that contain basketball,football ,pingpong and more,while those concerned about their English study,they are willing to reading English weekly. As to me ,I usually skim throught newspaper to know what it contain.I think the reason why so many people like reading newspaper is that it can let us understand promptly the things we are interested in .
写完了.请楼主采纳啊.毕竟是我花了心血写的.谢谢!

0.58+0.63-0.79=0.42

home theater:
家庭影院
home theater:
1.television and video equipment designed to reproduce in the home the experience of being in a movie theater
同义词：home theatre

功率越大效果越好.但是你可以不开那么大.小功率即使你开的再大也没效果

一套家庭影院原来的售价是4200元,现在降价6分之1.现在每套售价是多少元?
4200x(1-1/6)=3500
王刚家种的草莓,去年收了840千克,今年的产量比去年的增加了7分之2.今年收了多少千克?
840x(1+2/7)=1080
郑州到上海的铁路长1000千米,一列火车从郑州开往上海,已经行了全程的8分之5,距上海还有多上千米?
1000x(1-5/8)=375
把鲜杏嗮成杏干,重量要失去3分之2.刘叔叔家收了84千克鲜杏,如果全嗮成杏干,可以嗮多少千克?
84x(1-2/3)=28

够