污染物累积指数 accumulation index of pollutants
污染物累积指数 accumulation index of pollutants
相关考题：
打开阿里指数首页的网址是（）。A、http：//www.1688.comB、http：//index.1688.comC、http：//www.taobao.comD、http：//index.taobao.com
慢性阻塞性肺部疾患是由于（）。A、大气污染物在体内蓄积的结果B、大气污染物对机体微小损害逐次累积的结果C、水体污染物在体内蓄积的结果D、水体污染物对机体微小损害逐次累积的结果E、大气二次污染物对机体微小损害逐次累积的结果
问答题The worst pollution threat is concentrated in and near large cities. There the people-made pollutants increasingly surpass the ability of air and water to dilute (冲淡；稀释) the contaminants (污染物) to safe levels. The natural ecological cycle depends on plants, which absorb some pollutants and release oxygen to the air. But near large cities, natural vegetation becomes scarce, and introduced trees, ornamental shrubs and gardens are far from adequate in absorbing motor vehicle and industrial air pollutants. Finally, some pollutants, most notably atomic waste, may continue to contaminate air, land, and water for thousands of years. Therefore, ecocrisis—ecocatastrophe or ecocide—has been for some time one of the major concerns of not only the ecoactivists and environmentalists, but of many scientists of other fields and the government authorities of many countries as well.
单选题慢性阻塞性肺部疾患是由于（）。A大气污染物在体内蓄积的结果B大气污染物对机体微小损害逐次累积的结果C水体污染物在体内蓄积的结果D水体污染物对机体微小损害逐次累积的结果E大气二次污染物对机体微小损害逐次累积的结果
名词解释题稳定指数（stability index（Lyzner index））