Science and technology 科学和技术 Pesticides 农药 Smoking them out 把它们熏死 Tobacco extracts protect plants from pests and pathogens 烟草提取物可用于植物病虫害 THERE are, as Paracelsus put it, no poisonsonly poisonous doses...
Science and Technology Pesticides Smoking them out 科技 农药 把它们熏死 Tobacco extracts protect plants from pests and pathogens 烟草提取物可用于植物病虫害 THERE are, as Paracelsus put it, no poisonsonly poisonous doses. That is...
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World's First Anti-Tobacco Treaty Goes into Force 国际第一个反烟草条约生效 The world's first treaty aimed at cutting tobacco-related deaths has come into force. The World Health Organizati...
75 种植烟草的农民改行捕鱼 DATE=7-24-01 TITLE=AGRICULTURE REPORT - Tobacco Farmers Going Fishing BYLINE=George Grow (Start at 1'01")This is Bill White with the VOA Special English AGRICULTUR...