单词：class y insulation
单词：class y insulation 相关文章
(woman) Thank you. It's great to see so many of you interested in this series on Survival in Outer Space. Please excuse the cameras - we're being videotaped for the local TV stations. Tonight I'm going to talk about the most basic aspect of survival
托福听力短文
13 Skyscrapers and Environment In the late 1960's, many people in North America turned their attention to environmental problems, and new steel-and-glass skyscrapers were widely criticized. Ecologists pointed out that a cluster of tall buildings in a
英语范文背诵20篇
In a landmark development within stem cell research, scientists say theyve used a cloning technique to make embryonic stem cells that match a patients DNA. The journal Nature highlights a study that shows the potential for using the technology to rep
2011年NPR美国国家公共电台10月
1. Toyota has announced it will recall more than 400,000 Prius and other hybrid vehicles around the globe to fix brake problems. This recall is the latest in a string of embarrassing safety problems at the world's largest automaker. This recall invol
美联社新闻一分钟2010(二月)
Many houses in New Zealand are cold. Our traditional wooden house had no insulation. If you live in a house like that, you are paying for heat to escape from the ceiling, walls and under the floor. Insulation is made from material like wool or fibreg
新西兰英语