第9题: [单项选择]Food that is rich in organic matter_________. A. has been nourished by fertilizers B. contains vegetable matter that has not been consumed C. has had chemicals and fertilizer added to it D. contains large quantifies of vitamins 参考答案:B 答案解析:[命题目的]本题考察对文章细节的理解。
[解题要点]根据题意,确定答案在第二段第一句话“...vegetable...been grown in soil...rich in organic mat