环境监测的对象有。() ["大气、水体、土壤、生物、噪声","大气、市容、土壤、生物、噪声","大气、交通、土壤、生物、噪声","大气、江河、农田、生物、噪声"]
大气的臭氧层对人体是有益的,因为它能() ["A、吸收紫外线","B、吸收红外线","C、阻挡微波辐射","D、防止酸雨"]
产生温室效应的气体主要是() ["A、二氧化碳","B、氢气","C、二氧化硫","D、臭氧"]
下列属于不可再生能源的是。() ["A、石油","B、水能","C、风能","D、潮汐能"]
不属于清洁能源。() ["A、水","B、空气","C、矿物质","D、食物"]
国际市场营销研究