人类控制害虫的策略,从本质上讲已经历了三个 发展历程。 1940年前、即合成农药未诞生时人类被动的依靠 生态体系自有的调控能力控制害虫的危害。 1940~1995间的第二个历程又经历了害虫防治、 协调防治、综合治理即种群数量控制三个阶段。 1996年后害虫治理进入了可持续控制的新阶段

为贯彻《中华人民共和国环境保护法》、《中华人民共和国水污染防 治法》和《中华人民共和国海洋环境保护法》,控制水污染,保护江河、湖 泊、运河、渠道、水库和海洋等地面水以及地下水水质的良好状态,保障人体 健康,维护生态平衡,促进国民经济和城乡建设的发展,特制定本标准

Part I Vocabulary (0.5*40=20) A tended B inclined C intended D declined 2. I took it for that you'd want to come with us, so I bought you a ticket

1. The priest wore a woolen garment next to his skin. A. coarse B. rude C. vulgar D. obscene

1. You still have a lot _if you'll forgive my A)to learn/saying B) learning/saying C) learningto say D) to learn/to say 2. There is no point to persuade him to do anything A)to try B)in trying C)of trying

中南民族大学：《综合英语》（英文版） 工商学院试卷

Two months later, some more money with another note: \Only 25 per cent a thief now.\In time, in this way. The last note said: I am

1、本卷的第一部分至第四部分的答案做在答题卡上。请必用铅笔按要求涂卡。. What oes Laura's' mother think of Laura? 2、本卷的第五部分(作文)写在答题纸(最后一页)上 A. Laura really needs a full-time job

computers. Passage D. To warn against mentally lazy attitude towards In what now seem like the prehistoric times of computers. computer history, the earth's postwar era, there was quite 22. According to the passage, the initial concern about

Definition The term\language\ normally refers to human speech, spoken or written. Language forms the basis of communication between all human beings