【题目】北京市推出16种野草替代人工草坪增加绿地面积，减少了维护人工草坪景观需要使用的大量除草剂和化肥。同时，试点采用18种吸附PM2．5的植物，配置乔木、灌木和草搭配的绿化带。据此完成下列小题。
【1】与人工草坪相比，野草
A．更加美观整齐 B．减少灌溉用水量
C．破坏生态环境 D．易造成土壤污染
【2】吸附PM2．5能力强的绿化带应优先布局在
A．城市道路两侧 B．京密引水渠沿线
C．人口密集区域 D．郊野公园的绿地
【3】北京市绿化的做法符合可持续发展的
A．持续性原则 B．公平性原则
C．共同性原则 D．发展性原则
【答案】
【1】B
【2】A
【3】A
【解析】
试题分析：
【1】人工草坪由于人为修剪，更加美观整齐。野草是顺其自然生长，适应环境的能力更强，涵养水源的能力更强，不需要耗水过多，可减少灌溉用水量。“减少了维护人工草坪景观需要使用的大量除草剂和化肥”相比人工草坪，野草对生态环境起保护作用，可减少对环境的污染。故选B。
【2】城市道路两侧的车辆尾气会产生大量的PM2．5，所以应该布局吸附PM2．5能力强的绿化带。京密引水渠沿线和人口密集区域并不会产生过多的PM2．5。郊野公园的绿地本身就有吸附PM2．5的功能，不需要再布局吸附能力强的绿化带。故选A。
【3】可持续发展的持续性原则指人类的经济活动和社会发展必须保持在资源和环境的承载力之内，北京市绿化的做法很好地协调了经济发展与环境的关系，符合这一原则。材料并没有体现这一原则可持续发展的公平性原则和共同性原则。可持续发展没有发展新原则。故选A。
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