单词：dusting powder drug method
单词：dusting powder drug method 相关文章
Little bear, time to get up. 小熊，该起床了。 It's cleaning day, and I need your help. 今天是清扫日，我需要你帮助。 Little bear. 小熊。 Morning, mother. 早上好，熊妈妈。 Oh, sorry, I will finish dusting later. 哦，对
天才宝贝熊
A Step Closer to Major HIV Prevention Method A U.S. government panel has recommended the use of a once daily pill to help prevent HIV infection. The pill has been shown to be very effective in studies. The Food and Drug Administration, the FDA, now h
VOA标准英语2012年(五月)
学生构思3D打印新方法或能将废物再利用 A popular 3D printing method called selective laser sintering,or SLS,uses metal or plastic powder,typically nylon,for creating various objects,but leaves about 44 percent of it as waste. 现在3D打
VOA标准英语2015年(十二月)
By Jessica Berman Washington 12 October 2006 Researchers have developed a new tuberculosis test that makes a diagnosis possible in a fraction of the time it can take using other methods. Experts say the test would be especially useful in the develop
2006年VOA标准英语（十月）
By Cindy Saine Washington 08 January 2008 The U.S. Supreme Court this week heard oral arguments challenging the use of lethal injections to carry out executions in the United States. The case under consideration comes from Kentucky, where two death r
VOA标准英语2008年（一月）
The winter of wisconsinNothing. No tracks but my own are stitched into the dusting of fresh snow, white as birch bark, that fell during the night. No flittering shadows in the trees, not a sliver of bird song in the air. 天地一片空寂。昨夜刚刚
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