Paragraph 4（） A: Main reason for the popularity of organic food B: Description of organic farming C: Factors that affect food health value D: Testing the taste of organic food E: Necessity to remove hidden dangers from food F: Research into whether organic food is better
Paragraph 4（） A: Main reason for the popularity of organic food B: Description of organic farming C: Factors that affect food health value D: Testing the taste of organic food E: Necessity to remove hidden dangers from food F: Research into whether organic food is better
mini-talk 2 A: Organic farming can reduce soil erosion. B: Organic crops produce lower yields. C: Organically grown food tastes strange. D: Organic farming is better for the environment.
mini-talk 2 A: Organic farming can reduce soil erosion. B: Organic crops produce lower yields. C: Organically grown food tastes strange. D: Organic farming is better for the environment.
Vitamins are a type of organic matter.
Vitamins are a type of organic matter.
POPs（Persistent Organic Pollutants）是
POPs（Persistent Organic Pollutants）是
Techniques of organic farming help__________．[1分]
Techniques of organic farming help__________．[1分]
America is the leading country in organic agriculture.
America is the leading country in organic agriculture.
有机物质装载( organic matter loading )
有机物质装载( organic matter loading )
Organic produce looks the same as regular produce.
Organic produce looks the same as regular produce.
Vitamins are a class of high molecular organic compounds( )
Vitamins are a class of high molecular organic compounds( )
"Organic cotton" in Para. 3, probably means "cotton ______".
"Organic cotton" in Para. 3, probably means "cotton ______".