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某商贸中心位于市中心繁华地带，周围是以商业、服务业为主体，以文化、教育、卫生和旅游事业为支柱的区域。已建成的一期工程用地面积约10万m2。工程内容包括饭店、写字楼、公寓、会议厅、商场、行政楼和停车库等，总建筑面积50万m2。现拟建二期工程，位于已建成的一期工程东侧，建设内容包括2栋公寓、1栋写字楼、1栋饭店和1栋商场，地下二三层为大型停车场。二期总占地面积8万m2，建筑用地面积66721m2，新征用地面积56000m2。二期工程建成后与一期工程相连构成一个集办公、酒店、商业、餐饮、娱乐、服务于一体的多功能建筑群。 商贸中心二期工程选址区东侧为交通干道；北侧隔马路是一个小学，小学北侧为一风景名胜古迹，是省级文物保护单位；南侧为一高级写字楼。周围100m范围内建筑物最高为50m。项目周围水电设施齐全，供暖在一期工程已建成的锅炉房基础上进行扩建，锅炉为天然气锅炉，现有烟囱高度为45m，制冷采用中央空调系统。 建设过程中应注意哪些问题施工期的主要环境影响是什么
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扣制法的盛器复杂多样，使用两个以上的器皿加工。( )
Passage Three The study of ecology is important for everyone who cares about our world. Air, water, and land -- we would not live without any of these. But what do we mean by land It is the earth beneath our feet, wherever we are. It is mountains and plains. It is wide fields for growing com and wheat. Or it may be an airfield or a parking lot or a highway or a whole city -- land covered with cement, asphalt, and buildings. Land is the solid part of the Earth. Land is the soil plants grow in. That is the most important things about the land -- it is the place where green plants grow. Without green plants there would be not life on Earth. Green leaves make oxygen. All of us -- ants, elephants, people, every living creature -- must have oxygen to stay alive. We breathe in oxygen and our bodies use it. Carbon dioxide is formed in the process and we breathe it out. Leaves use carbon dioxide along with water to make food for plants. Then they give off oxygen. This process has been going on for millions of years. It is part of the pattern of our natural life on Earth. This pattern had changed very little for millions of years before people arrived on Earth. People found ways to improve their lives by changing nature, by trying to make nature fit in with their way of life. Warm houses in winter, electric lights at night, factories to produce our food, our clothes, our gadgets(零用品) -- all this people have accomplished. And we learned to grow more food on the land than nature could grow without our help. All this is good -- up to a point. But it has gone too far. We have produced too much and we have failed to see what this was doing to our world. We have not understood the ways in which all living things on Earth depend on one another. We ourselves have increased until the sheer numbers of people on Earth have upset the balance of nature. Which of the following may best describe the tone of the last paragraph of the passage
某商贸中心位于市中心繁华地带，周围是以商业、服务业为主体，以文化、教育、卫生和旅游事业为支柱的区域。已建成的一期工程用地面积约10万m2。工程内容包括饭店、写字楼、公寓、会议厅、商场、行政楼和停车库等，总建筑面积50万m2。现拟建二期工程，位于已建成的一期工程东侧，建设内容包括2栋公寓、1栋写字楼、1栋饭店和1栋商场，地下二三层为大型停车场。二期总占地面积8万m2，建筑用地面积66721m2，新征用地面积56000m2。二期工程建成后与一期工程相连构成一个集办公、酒店、商业、餐饮、娱乐、服务于一体的多功能建筑群。 商贸中心二期工程选址区东侧为交通干道；北侧隔马路是一个小学，小学北侧为一风景名胜古迹，是省级文物保护单位；南侧为一高级写字楼。周围100m范围内建筑物最高为50m。项目周围水电设施齐全，供暖在一期工程已建成的锅炉房基础上进行扩建，锅炉为天然气锅炉，现有烟囱高度为45m，制冷采用中央空调系统。 该项目烟囱高度是否合理为什么高度应为多少
某城市根据当地资源及社会经济发展的需要，拟规划一工业开发区，以能源重化工为主，规划用地面积10km2，现委托你所在机构进行该工业园区规划的环境影响评价。该城北部以一条河流与另一城市相隔，该河流为两城市的饮用水源。该城西南方向有较大面积的农田，且均为基本农田，农田西南有山脉一处，为国家级森林公园。根据城市发展规划，城市在未来十年内将由现在的30万人口发展到45万人，城市总体发展方向为沿江向东西两个方向展开。近期拟建设污水处理厂一座，位于城市东南方向16km处，用于处理城市污水和部分工业废水，处理后的污水尽可能作为中水回用，少量排入北部河流城市下游段。在城市规划中预留了三处工业开发区，分别为城市东东南方向15km处(A区)、东南方向20km处(B区)、南东南方向17km处(C区)，分别发展能源重化工业、轻工纺织业和机械加工业，但未明确哪一区块用于发展能源重化工业。三处工业区规划实施需搬迁9个村庄近10000人。开发区集中配套建设相应的供水、供电、交通和通信设施。该区域常年主导风向为西北风，春季常有来自西北方向的大风，年降水量560mm，蒸发量4300mm，冬季较为寒冷。 指出该能源重化工开发区环境影响评价要素及主要指标
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