消能海滩

SSS 2008-11-19

This podcast is brought to you by the American Chemical Society. The global challenges chemistry solutions podcast from ACS discusses how chemistry researchers critical in solving some of the world's most daunting problems, concerning energy, food an

发表于:2018-12-24 / 阅读(48) / 评论(0)

Scientific American(十一)月

SSS 2011-11-21

Male nursery web spiders often woo potential lady-friends with gifts wrapped in silk. Mating may ensue, during which a female unspools the present, expecting to find a tasty treat. But the males can be unscrupulous. Some offerings contain inedible pl

发表于:2018-12-24 / 阅读(43) / 评论(0)

Scientific American(十一)月

NPR边听边练12:强强联手好处多

【NPR边听边练】致力于提供新鲜有趣、饶有意味的时讯资料，致力于通过精听的方式促进听力提高，致力于不断开阔眼界和深入了解美国观点。精听建议：先完整地把一条新闻听一到三遍，争

发表于:2018-12-26 / 阅读(21) / 评论(0)

NPR边听边练

NPR 2009-11-04

From NPR News in Washington, I'm Carol Van Dam. Voters in New Jersey and Virginia are electing governors today and several major cities including New York, Houston and Atlanta are choosing mayors. NPR's Kathy Lohr reports. Virginia helped elected Ba

发表于:2019-01-08 / 阅读(75) / 评论(0)

2009年NPR美国国家公共电台11月

NPR 2010-09-04

President Obama is calling for improving the economic climate for the nation's small businesses today. Danielle Karson reports Mr. Obama plans to roll out a package of measures next week he says will boost economic growth. President Obama stood with

发表于:2019-01-08 / 阅读(62) / 评论(0)

2010年NPR美国国家公共电台9月

英语四级词汇真题强化训练 (第六期)

本期真题 1. ______their differences. The couple were developing an obvious and genuine affection for each other. A) But for B) For all C) Above all D) Except for 2. One day I ______ a newspaper ar

发表于:2019-01-08 / 阅读(33) / 评论(0)

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