通过生物研究改良农业

AGRICULTURE REPORT - Controlling Fruit Flies in Hawaii

AGRICULTURE REPORT - Controlling Fruit Flies in Hawaii By Mario Ritter Broadcast: Tuesday, March 02, 2004 This is Steve Ember with the VOA Special English Agriculture Report. Fruit flies can damage fo

发表于:2019-01-09 / 阅读(55) / 评论(0)

农业与发展

VOA慢速英语-Agriculture Report - Finding the Biological Roots of

This is the VOA Special English Agriculture Report. A farmer in his maize field near Arusha, Tanzania The maize streak virus causes one of the most destructive crop diseases in Africa. Not only is it economically damaging, it can also threaten food

发表于:2019-01-11 / 阅读(50) / 评论(0)

VOA慢速英语2008年（九）月

AGRICULTURE REPORT - World Food Prize Winners

AGRICULTURE REPORT - World Food Prize Winners By Mario Ritter Broadcast: Tuesday, April 06, 2004 This is Steve Ember with the VOA Special English Agriculture Report. Scientists from China and Sierra L

发表于:2019-01-25 / 阅读(43) / 评论(0)

农业与发展

AGRICULTURE REPORT - Biological Controls, Part 1

AGRICULTURE REPORT - Biological Controls, Part 1 By Mario Ritter Broadcast: Tuesday, April 13, 2004 This is Steve Ember with the VOA Special English Agriculture Report. Biological controls are living

发表于:2019-01-30 / 阅读(52) / 评论(0)

农业与发展

【英音模仿秀】致命炭疽

模仿文本： Anthrax is a potentially deadly disease that caused by a bacteria. Occasionally it is found in nature but the strain found in the letters is the aim strain developed by the USmilitary after the World War II to research biological weap

发表于:2019-02-16 / 阅读(34) / 评论(0)

英音模仿秀

我国首座国家基因库在深圳启动试运行

The first national gene bank, built by China's gene research giant BGI, started trial operation last Saturday in Shenzhen. 我国首个国家级基因库上周六在深圳投入试运行。该基因库由国内基因研究巨头华大基因建设。

发表于:2019-02-18 / 阅读(24) / 评论(0)

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学英语单词

'gator

achievement motivation theory

acquainting

Actaea alba

addendum modification of wormwheel