单词：mixture of boric acid and bleaching powder
单词：mixture of boric acid and bleaching powder 相关文章
Acid Rain 酸雨 Damage from acid rain is widespread - not just in eastern North America, but throughout Europe, Japan, China, and Southeast Asia. Is the rain that's falling on your umbrella acidic? A listener's question -- on today's Earth and Sky. J
(科普英语)Earth and Sky
This is the VOA Special English Health Report. 这里是美国之音慢速英语健康报道。 Israeli researchers say they have developed a substance that attracts and kills mosquitoes infected with the malaria parasite. However, the sweet smelling
2011年VOA慢速英语(二)月
LULU GARCIA-NAVARRO, HOST: Around the world, skin bleaching is popular, particularly in India, China and parts of Africa. Some immigrants have taken the tradition to the United States. In Minnesota, where the largest Somali community in the U.S. resi
2018年NPR美国国家公共电台2月
New Zealand dairy firm Fonterra has apologized for its tainted milk powder scandal. Batches of the whey protein from the dairy giant were allegedly found containing toxic bacteria. Su Yi has more. Fonterra CEO Theo Spierings says Fonterra regrets any
世界各地新闻集锦
Idiom: Make waves ( make problems ) Hit the book: Tropical Endangered Algae Bleaching Ban
趣味青春英语
How does acid deposition affect human health? We eat food, drink water, and breathe air that has come in contact with acid deposition. Canadian and U.S. studies indicate that there is a link between t
知性英语
This is the VOA Special English Development Report. Dye can bring a little color to life. Most clothing is colored with dyes. Modern, manufactured dyes can be costly. Natural dyes from plant and animal products have been used since ancient times. So
2010年VOA慢速英语(八)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)
今天要讲的习惯用语都由这样一个关键词发展而来 ： powder。 大家一定知道powder是粉， 可以是扑脸的香粉，也可能是治病的药粉或者爆炸的火药，种类繁多。今天要学的第一个习惯用语是：
美国习惯用语
By Birungi Machrine Kampala 26 November 2007 Attacks using acid are becoming more frequent in Uganda. Up to 2003, there were only 145 recorded attacks, but over the last three years, there have already been 87. Survivors often suffer from severe emot
VOA常速英语2007年（十一月）
Lesson 57 Sulphur 第57课 硫 Did you ever have to take a mixture of brimstone and treacle? This mixture has not a pleasant taste, but it is a useful medicine; and if it will do us good, we should not care much whether it has a nice taste or not. 小朋
英国学生科学读本
New Zealand mothers are having difficulty finding cans of baby formula in the supermarkets. Some supermarkets are limiting the number of cans to two per customer. The shortage may be because Chinese in New Zealand are buying cans of formula to send b
新西兰英语
Suspicious Powder Discovered on Capitol Hill Deborah Tate Three U.S. Senate office buildings are closed, and congressional business has been disrupted a day after a suspicious powder, believed to be t
VOA2004（上）--各类新闻
音乐咖啡厅:Play - When Love Is Bleaching Bad 相关介绍：play是一个来自瑞典的少女偶像团体，成立于2001年.成员有4个人，Faye Hamlin, Anna Sundstrand, Anais Lameche和Rosie Munter.刚加入团队的她们只有12，3岁.P
音乐咖啡厅
今天我们要讲的习惯用语有一个共同的关键词: powder。大家也许知道powder是粉末。有各种各样的粉末， 例如女士化妆用的香粉， 还有火药或者病人用的药粉等等。 在我们要学的第一个习惯用语
美国习惯用语
今天要讲的美国俚语由powder发展而来。大家一定知道powder是粉，可以是扑脸的香粉，也可能是治病的药粉或者爆炸的火药，种类繁多。今天要学的第一个习惯用语是： take a powder。 习惯用语t
美国俚语
今天要学的习惯用语是： keep one's powder dry。在keep one's powder dry这个习惯用语里，powder指枪炮用的火药。以前步兵和水兵把火药装在火药桶里保持干燥，随时取用。要是哪个粗心大意的士兵忘了
美国俚语
Voice 1 Welcome to Spotlight. I'm Liz Waid. Voice 2 And I'm Mike Proctor. Spotlight uses a special English method of broadcasting. It is easier for people to understand, no matter where in the world they live. Voice 1 They were the top-selling milk p
环球英语 Spotlight
Israeli(以色列) researchers say they have developed a powerful bait that effectively attracts and kills malaria-infected mosquitoes but is completely harmless to humans and other animals. The toxic sugar bait developed by scientists at Hebrew Univ
英语新闻