题目内容
O/W型乳化剂的HLB值一般为
2022-01-08
A.1~3
B.3~8
C.9~12
D.8~16
E.15~18
试卷相关题目
SQL Error: select id,body,options from ***_enewstiku where sourceid='30815' and id < 2481687 and id<>'2481687' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='30815' and id > 2481687 and id<>'2481687' order by id asc limit 5