标签:火 相关文章
Today we're starting in Central Africa. Earlier this year in May, there was an outbreak of the deadly E-Bola virus in the Democratic Republic of Congo. A little more than a month ago the Congolese government declared that it was over. But then just d
Piano Concerto #1, MVT. 1/Pi 贝多芬第一钢琴协奏曲/第五钢琴协奏曲 But when he first came to Vienna he was more famous for his playing than for his composing. 但是贝多芬第一次来维也纳的时候,他作为演奏家的名声远
The queue for the auditions went on and on. Some of the girls have been lining up since yesterday evening to get their couple of minutes in front of the casting director. Thousands of young actresses
This is AP News Minute. The explosive new book about President Donald Trump's administration is selling out at bookstores across the US and Europe. Fire and Fury, Michael Wolf's tell-all of the inner workings of the Trump's administration, stood numb
Topic1 Raise pay to prevent judges leavingAs more judges are leaving the courts, there is calling for improving the pay and working conditions of the profession. But is that all what it takes for them to stay? What are the problems? Why the crisis? T
They believe that their first step to controlling fire was the ability to understand and predict its behavior. Later on, hominids learned to contain the fire by adding fuel or extinguishing it. In a final step, they learned how to create fire. Resear
What Is Fire? 火是物质燃烧过程中散发出光和热的现象,是能量释放的一种方式。火焰分为焰心、中焰和外焰,温度由内向外依次增高。燃烧过程必须有可燃物、燃点温度、氧化剂三项并存,缺一