实验产生的废液和废弃固体物质可直接倒人下水道。

试卷相关题目

SQL Error: select id,body,options from ***_enewstiku where sourceid='30402' and id < 2457810 and id<>'2457810' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='30402' and id > 2457810 and id<>'2457810' order by id asc limit 5