题目内容
粒子大小的常用表示方法有
2021-10-14
A.定方向径
B.筛分径
C.有效径
D.等价径
E.直观径
试卷相关题目
SQL Error: select id,body,options from ***_enewstiku where sourceid='25706' and id < 2160843 and id<>'2160843' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='25706' and id > 2160843 and id<>'2160843' order by id asc limit 5