润滑脂是由矿物油、稠化剂、添加剂在髙温下混合而成，一般矿物油的含量为 （） 。

试卷相关题目

SQL Error: select id,body,options from ***_enewstiku where sourceid='24898' and id < 2124659 and id<>'2124659' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='24898' and id > 2124659 and id<>'2124659' order by id asc limit 5