第34题: [单项选择]Passage TwoWhat is mentioned as one of the suggestions raised by scientists A. Using less insecticide. B. Giving the plants up. C. Spraying crops frequently. D. Trying other insecticide. 参考答案:A 答案解析:[解析] 短文提到了科学家给农场主的三点建议:少用杀虫剂、同时使用两种或三种杀虫剂、吸引别的昆虫到田间。A正是短文中提及的建议之一,故为答案。 [点睛] B未提及,可首先排除;C利用原