友情提示:本站提供全国400多所高等院校招收硕士、博士研究生入学考试历年考研真题、考博真题、答案,部分学校更新至2012年,2013年;均提供收费下载。 下载流程: 考研真题 点击“考研试卷””下载; 考博真题 点击“考博试卷库” 下载
第 1 页,共 2 页 浙江林学院 2006 年研究生入学考试农药学试题 姓名 考生编号: 注意:请把答案写在考场发放的答题纸上,并标明题号,答在草稿纸或其它纸张上的无效;没作答 题目请写明题号,题与题之间不留空白。 一、填空题(每空 1 分,共 30 分) 1.杀菌剂按其对病原微生物的作用方式可分为 、 、 。 2.除草剂按其除草方式分为 、 。 3.影响药效的三大因素是 、 、 。 4. 列举三个常见的农药剂型 、 、 。 5.LD50 指的是 ,LC50 指的是 。 6.未经加工的农药称为 ,固体的称为 ,液体的称为 。 7.目前作农药助剂的表面活性剂主要是 和 两类。 8.除草剂的选择性原理大致可划分为 、 、 、 、 。 9. 剂是各类农药中使用最早、最广泛的一类,在 20 世纪 70 年代之前,它一直处于各类农药 之首。其后由于 剂的兴起及其在发达国家的大量使用,它才在世界农药的总销售额中退居 第二位。它在农药发展的历史上占有重要的地位, 、 的出现,使农药 从无机化合物步入 的时代。 10.波尔多液由 和 配制而成。 二、选择题(每小题 2 分,共 10 分) This debate has been the source of much division in ecotoxicology, between the Applied, often Industrial, Ecotoxicologists concerned with the practicalities of chemical registration and testing and the Pure or Academic Ecotoxicologists who regard many toxicity testing regimes as inappropriate or at worst useless. Unfortunately, never the twain shall meet and the level of communication between the twocamps has not been great. Afictional exchange makes the point well (from Forbes & Forbes 1994): : Single species acute toxicity tests are too simplistic and have no connection with what is really going on out in nature. These standard tests are not only irrelevant and a waste of time, they may in fact do more harm than good if they lead us to believe that we can use them to adequately protect the environment when in factwe cannot. : These tests may be oversimplified, but they are also cost-efficient, easy to perform, the procedures have been worked out, and the fact is they are required by government. We have absolutely no incentive to do more than is required by law, and, frankly, you have given us little hard evidence that current test procedures do fail to protect the environment adequately. : Do you have any idea of the number of new chemicals that we have to assess each
免责声明:本文系转载自网络,如有侵犯,请联系我们立即删除,另:本文仅代表作者个人观点,与本网站无关。其原创性以及文中陈述文字和内容未经本站证实,对本文以及其中全部或者部分内容、文字的真实性、完整性、及时性本站不作任何保证或承诺,请读者仅作参考,并请自行核实相关内容。
|