题目内容
应用球磨机粉碎,球与物料的合理装量为
2021-10-14
A.占罐体总容积的15%~20%
B.占罐体总容积1/3
C.占罐体总容积的50%~60%
D.占罐体总容积的60%~80%
E.没有具体要求
试卷相关题目
SQL Error: select id,body,options from ***_enewstiku where sourceid='25712' and id < 2161481 and id<>'2161481' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='25712' and id > 2161481 and id<>'2161481' order by id asc limit 5