题目内容
表面活性剂去污剂的HLB值是多少
2021-10-14
A.3～8
B.8～16
C.13～18
D.13～16
E.7～9
试卷相关题目
SQL Error: select id,body,options from ***_enewstiku where sourceid='25712' and id < 2161570 and id<>'2161570' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='25712' and id > 2161570 and id<>'2161570' order by id asc limit 5