Organic farmers do not use chemical fertilizers, genetically engineered seeds, or harmful chemicals to kill ___1___ and ____2___.
举一反三
- In the past__________. A: it was expensive for farmers to buy chemical fertilizers B: farmers grew pineapple on a small scale C: farmers made great profit by produing organic foods D: farmers received great help from the U.N. Food and Agriculture Organization
- 43. According to the author, the use of chemicals and fertilizers ______.
- 1. Natural foods are rich inessential ____①____and ___②___.2. The use of chemicals and fertilizers is to increase the __③_not the _④___of foods.
- The farmers were _____________ seeds on the fields.
- The purpose of using chemicals and fertilizers is to increase the quality of foods.