PM2.5是指大气中直径小于或等于2.5um的颗粒物.下列情况不能使大气中PM2 发布时间:2017-04-24 10:03 │ 来源:www.tikuol.com 题型:选择题 问题: PM2.5是指大气中直径小于或等于2.5um的颗粒物.下列情况不能使大气中PM2.5含量增多的是( )A.汽车尾气的排放B.燃放鞭炮C.火力发电D.使用太阳能热水器
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