儿童的词汇可以分为积极词汇和消极词汇两类。“积极词汇”是指（ ）。

试卷相关题目

SQL Error: select id,body,options from ***_enewstiku where sourceid='31370' and id < 2516000 and id<>'2516000' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='31370' and id > 2516000 and id<>'2516000' order by id asc limit 5