单词：filtration differentiation
单词：filtration differentiation 相关文章
Speaking Sparkles (2) 妙语连珠 1. Well, let's say, you know, life is a constant learning process and I encourage everybody who is watching or 1) participating to constantly think about lifetime le
疯狂英语2003年
Beijing will launch a pilot program to equip schools and kindergartens with air filtration devices. Smog has been a significant issue in the Chinese capital this winter. I was coughing just now, I always wear mask, from school to home. The air is cho
2017CRI中国国际广播电台
创业者需要记住的15句话 又到一年毕业季，面对现在高校毕业生惨淡的就业形势，一些毕业生选择了自主创业，为自己打工。下面是15句对创业者的忠告，你可以说给你打算创业的同学听听。
实用英语
By Tabinda Naeem Washington, D.C. 21 May 2007 Two years ago, the National Academy of Engineering established the Grainger Challenge Prize for Sustainability. This $1 million award was designed to challenge the world's scientists to develop a practica
2007年VOA标准英语（五月）
1. Be slow to hire and quick to fire. 招人要慎重，炒人要迅速。 2. Create the best environment you can for your team. 为你的团队创造最好的工作环境。 3. Companies aren't just about profits. 开公司不仅仅是为了钱。 4
实用英语
German universities 德国的大学 Between great and so-so 处于顶尖和一般之间 Not in the elite but improving, German universities bet on a middle way 虽非精英教育但一直在提高，德国的大学秉承着中庸之道 A GLANCE at th
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