题目内容
换热器中的有机物类的污垢,可用( )予以清洗。
2021-10-04
A.高压碱水反复冲洗
B.循环热水反复清洗
C.热洗涤油反复冲洗
D.喷砂方法
试卷相关题目
SQL Error: select id,body,options from ***_enewstiku where sourceid='24912' and id < 2125269 and id<>'2125269' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='24912' and id > 2125269 and id<>'2125269' order by id asc limit 5