题目内容
儿童掌握数概念的关键期是 ( )
2021-11-22
A.3〜4. 5岁
B.4〜4. 5岁
C.4〜5. 5岁
D.5〜5. 5岁
试卷相关题目
SQL Error: select id,body,options from ***_enewstiku where sourceid='28331' and id < 2318266 and id<>'2318266' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='28331' and id > 2318266 and id<>'2318266' order by id asc limit 5