单词：cellulose acetate electrophoresis
单词：cellulose acetate electrophoresis 相关文章
A: Could you tell me how to use the washer and dryer? B: What do you need help with? A: Do you know how to turn them on? B: Do you have any change? A: I need change for the machines? B: You need to put 50 cents into the washer machine and a dollar in
英语情景对话-日常生活
May: Oh, Mom, do you know where the liquid soap is? Mom: Right here, in that beautiful bottle. Push the button, you'll get it. May: Oh, Mom, you can use the wipe. It smells sweet. Mom: That's OK. I prefer the hand-dryer. Oh, where is the switch? May:
英语大赢家下册
Don't change horses in the middle of the stream to jump on the bandwagon 美国的民意测验显示，布什总统落后于民主党候选人克林顿。这使人想起在十九世纪美国内战期间
美国习惯用语
在宾馆的洗手间里，妈妈和阿美碰到一些小问题，干手器坏了。到底怎么解决呢？ Listen Read Learn May: Oh, Mom, do you know where the liquid soap is? Mom: Right here, in that beautiful bottle. Push the button, you'll get it. May: Oh, Mom, you can use the w
英语口语大赢家
SAN FRANCISCO, April 19 (Xinhua) -- YouTube announced Tuesday that the much-anticipated British royal(王室) wedding of Catherine Middleton and Prince William will be live streamed on the website' s live channel. Next Friday, the live stream will fo
英语新闻
Volunteers, farmers and local government in Pennsylvania community work to clean up waterways. Rosanne Skirble | Lititz, Pennsylvania 30 November 2009 Watch: Skirble report Windows Media Lititz Run prior to restoration with eroded stream banks and fe
VOA标准英语2009年(十二月)