人类短时记忆的广度约为（ ）个信息单位。

试卷相关题目

SQL Error: select id,body,options from ***_enewstiku where sourceid='26192' and id < 2194078 and id<>'2194078' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='26192' and id > 2194078 and id<>'2194078' order by id asc limit 5