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This is Scientific American's 60-Second Science. I'm Christopher Intagliata. Got a minute? Asbestos increases the risk for certain cancers. The fibers are thought to do so by skewering cells, setting off chemical reactions that lead to inflammation,

发表于:2018-12-24 / 阅读(69) / 评论(0) 分类 Scientific American(九)月

26After the plague the Lord said to Moses and Eleazar son of Aaron, the priest, 2Take a census of the whole Israelite community by families-all those twenty years old or more who are able to serve in the army of Israel. 3So on the plains of Moab by t

发表于:2018-12-30 / 阅读(65) / 评论(0) 分类 民数记

Each day, millions of tonnes of rubble go by truck to Bottle Lake Forest in Christchurch. Demolition companies are working seven days a week to demolish buildings in the CBD after the earthquakes caused so much damage. Cranes, bulldozers, excavators,

发表于:2019-01-27 / 阅读(50) / 评论(0) 分类 新西兰英语

By Mike O'Sullivan Palmdale, California 06 September 2006 Engineers in the California desert are testing a new communications platform that blends modern electronics with old technology. Developers say a helium-filled balloon carrying high-tech equi

发表于:2019-02-07 / 阅读(109) / 评论(0) 分类 2006年VOA标准英语(九月)

Topics: Preventing Violence in Schools Post Columbine; American Territories: U.S. Virgin Islands; although versus even though; lite; rate versus rank Words: campus massacre outcast bullied minor to claim clique to retaliate Caribbean inhabitant exoti

发表于:2019-02-23 / 阅读(56) / 评论(0) 分类 美语听力 English Cafe

Because we can't see into the Earth, we have to use other techniques, which mostly involve reading waves as they travel through the interior. 我们无法看到地球的深处,因此不得不使用别的方法,主要包括观察波在地球内部的

发表于:2019-02-25 / 阅读(60) / 评论(0) 分类 万物简史