单词：effective filtration depth
单词：effective filtration depth 相关文章
There are six characteristics of speech, all of which are vital to speak effectively. In this section we'll look at each of them separately. These speech characteristics are basically important to you
疯狂英语2001年
BY STEPHEN R .COVEEY The first habit is 1)proactivity. Be proactive. The word proactivity is fairly common in management literature, but you won't find it in the dictionary. It means more than merely
疯狂英语2001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
By Melinda Smith Washington 31 August 2007 Centuries ago doctors used hypnosis to help relieve the excruciating pain of surgery. It then fell out of favor with the introduction of anesthesia. Now as VOA's Melinda Smith reports, new studies show a hos
2007年VOA标准英语（八月）
By Jessica Berman Washington 14 May 2008 Researchers have determined that commonly prescribed triple-drug combination therapies that use old antiviral drugs are the most effective for suppressing the deadly virus that causes AIDS. The findings have m
VOA标准英语2008年（五月）
GUY RAZ, HOST: I want to ask you about this really famous Talmudic notion - actually, it might be that in the Quran as well - but this idea that, you know, if you save a single life, then you have saved all of humanity. You know that one? PETER SINGE
2017年NPR美国国家公共电台5月
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）
今天我们要学的词是in-depth。 In-depth, 是深入的意思。美国民主党总统参选人奥巴马星期二就种族问题发表讲话。He invited Americans to examine in-depth the most difficult and divisive issue in American history, 他号
英语每日一词
今天我们要学的词是in-depth。 In-depth, 是深入的意思。美国民主党总统参选人奥巴马星期二就种族问题发表讲话。He invited Americans to examine in-depth the most difficult and divisive issue in American history, 他号
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