牛生长素

AGRICULTURE REPORT - Making a Dairy Farm Work with Grass-fed

AGRICULTURE REPORT - Making a Dairy Farm Work with Grass-fed Cows By Mario Ritter Broadcast: Tuesday, October 11, 2005 I'm Steve Ember with the VOA Special English Agriculture Report. Raising cows for

发表于:2018-12-07 / 阅读(29) / 评论(0)

农业与发展

2007年VOA标准英语-Consumers Call for Ban on Growth Hormone in Mil

By Melinda Smith Washington 24 April 2007 One of the largest groups of milk producers in the United States has set an August first deadline for its members to stop treating their cows with a growth hormone, or pay more to get their milk to market. Th

发表于:2019-01-06 / 阅读(90) / 评论(0)

2007年VOA标准英语（四月）

VOA慢速英语 2008 0513b

SCIENCE IN THE NEWS - Museum Aims to Keep African Archeological Treasures in Africa Also: A vaccine against meningitis proves successful in Uganda. And a study suggests genetic reasons for living longer. Transcript of radio broadcast: 12 May 2008 VO

发表于:2019-01-11 / 阅读(35) / 评论(0)

VOA慢速英语2008年（五）月

VOA慢速英语20061122a

HEALTH REPORT - Study Links Red Meat to Higher Risk of Breast CancerBy Caty Weaver Broadcast: Wednesday, November 22, 2006 This is the VOA Special English Health Report. Exercise and keeping a healthy

发表于:2019-01-30 / 阅读(36) / 评论(0)

2006年慢速英语(十一)月

VOA标准英语2010年-Tumors Shrink When Mice Live in Stimul

Researchers believe activity and interaction activated a communication channel in mice that prompted fat cells to stop releasing a hormone which accelerates cancer growth. Related Links Cell New research has found that mice with cancer are better abl

发表于:2019-01-30 / 阅读(48) / 评论(0)

VOA标准英语2010年(七)月

Researchers Stumble Across Hair Growth Treatment

Researchers have stumbled across what may turn out to be a miracle（奇迹） treatment for hair loss in humans. The scientists were investigating how stress affects the digestive system when they made the discovery. The team at the University of Ca

发表于:2019-02-06 / 阅读(52) / 评论(0)

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archless continuous kiln

belt conveyor furnace