2. 外语
  3. The passage is mainly about the differences between conventional and organic fanning. ______ are applied in conventional farmin

The passage is mainly about the differences between conventional and organic fanning. ______ are applied in conventional farmin

admin2009-08-19  31
问题 The passage is mainly about the differences between conventional and organic fanning.
______ are applied in conventional farming for weed control.
选项
答案Synthetic herbicides
解析 本题涉及到在传统农业中农民使用什么来控制杂草的问题，与农业生产有关，从而将题目出处定位到Production: Organic vs. Conventional部分，再根据conventional fanning将答案进一步缩小到该部分下面的Conventional farmers处，由此便可得出答案。
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大学英语六级

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