大气供应面具

豆知识 2009-10-11&10-17 流感防控小知识——口罩的

N95 respirators are designed to protect you from breathing in very small particles that may contain viruses. These types of respirators fit tightly to the face so that air is inhaled through the filter material. N95 respirators should be worn only on

发表于:2018-12-11 / 阅读(228) / 评论(0)

英语解说豆知识2009年

美联社新闻一分钟 2006-01-16

1. As Pakistani anger mounts, intelligence officials say al-Qaida's No. 2 man was invited to dinner at the village hit by a purported CIA airstrike but didn't show up. 2. A suicide car bomb hits a Can

发表于:2019-01-08 / 阅读(103) / 评论(0)

美联社新闻一分钟2006

VOA标准英语2011--Senegal Accuses Iran of Supplying Weapon

Senegal has severed diplomatic relations with Iran, accusing it of supplying weapons to separatist rebels in the southern Casamance region where three Senegalese soldiers were killed in attacks over the weekend. The two countries' previously strong d

发表于:2019-01-14 / 阅读(43) / 评论(0)

VOA标准英语2011年(二月)

VOA标准英语10月-NATO Rules Out Supplying Weapons For Georgia

United States Defense Secretary Robert Gates says it appears Russian troops are withdrawing from key positions in the former Soviet republic of Georgia, nearly two months after a brief war ended between Russian and Georgian troops. He made the comme

发表于:2019-01-31 / 阅读(34) / 评论(0)

VOA标准英语2008年（十月）

VOA标准英语2010年-Dust From Farming May Affect Rainfall

New research suggests agriculture has greatly increased the amount of dust blowing off of West Africa, the world's largest source of atmospheric dust, and may have been one factor driving the decrease in rainfall in the region over the past several c

发表于:2019-02-07 / 阅读(48) / 评论(0)

VOA标准英语2010年(七)月

经济学人467:地理工程前景广阔

Science and technology. 科技。 Geoengineering. 地理工程学。 Implicit promises. 包含着承诺。 A geoengineering experiment has come unstuck. But there will be more. 地理工程试验取得突破。可期待更多。 FOR the past few year

发表于:2019-02-26 / 阅读(85) / 评论(0)

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学英语单词

artificial hepatic perfusion

asynchronous transmission output