特殊种植法

VOA慢速英语2009-Agriculture Report - The Seeds of Weed Control

This is the VOA Special English Agriculture Report. When is a plant considered a weed? Experts at Penn State University have a simple answer: When its undesirable qualities outweigh its good qualities. Consider this: Crops generally produce several

发表于:2018-12-15 / 阅读(36) / 评论(0)

VOA慢速英语2009年（五）月

VOA慢速英语 2008 0318a

Agriculture Report - The Seeds of Weed Control Advice for suppressing the growth of unwelcome plants. Transcript of radio broadcast: 17 March 2008 This is the VOA Special English Agriculture Report. When is a plant a weed? When its undesirable quali

发表于:2019-01-11 / 阅读(43) / 评论(0)

VOA慢速英语2008年（三）月

VOA慢速英语2010年-Agriculture Report - Ideas for Getting

This is the VOA Special English Agriculture Report. When is a plant considered a weed? Experts at Penn State University have a simple answer: When the undesirable qualities outweigh the good qualities. Consider that crops generally produce several hu

发表于:2019-01-11 / 阅读(44) / 评论(0)

2010年VOA慢速英语(八)月

VOA慢速英语2012 Agriculture Report - Getting a Firm Grip on Weed Control

Agriculture Report - Getting a Firm Grip on Weed Control 农业报道 - 严格控制杂草 This is the VOA Special English Agriculture Report. 这里是美国之音慢速英语农业报道。 When is a plant considered a weed? Experts at Penn State U

发表于:2019-01-12 / 阅读(48) / 评论(0)

2012年VOA慢速英语(六)月

CCTV9英语新闻：Xi attends tree planting activity, calls for understanding, protecting nature

BEIJING, March 29 (Xinhua) -- Chinese President Xi Jinping on Wednesday stressed the importance of afforestation and urged people, especially the young, to understand and protect nature via tree planting activities. Chinese PresidentXi Jinpingtalks w

发表于:2019-02-05 / 阅读(68) / 评论(0)

cctv9英语新闻2017年

Chinese demand effective tree-planting campaign

BEIJING, March 12 (Xinhua) -- This year's Tree-Planting Day comes at a fitting time, as the memory of a sandstorm that ravaged large parts of north China last weekend is still stingingly fresh. The Chinese public observed Tree-Planting Day, a yearly

发表于:2019-02-08 / 阅读(81) / 评论(0)

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