细胞膜不具有（ ）的特征。

试卷相关题目

SQL Error: select id,body,options from ***_enewstiku where sourceid='29808' and id < 2420662 and id<>'2420662' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='29808' and id > 2420662 and id<>'2420662' order by id asc limit 5