下列能够用碱提取酸沉淀法分离的化合 物是

试卷相关题目

SQL Error: select id,body,options from ***_enewstiku where sourceid='30783' and id < 2478887 and id<>'2478887' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='30783' and id > 2478887 and id<>'2478887' order by id asc limit 5