从整休发展来看，小学生品德发展的关键年龄大致是（ ）。

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SQL Error: select id,body,options from ***_enewstiku where sourceid='30649' and id < 2471246 and id<>'2471246' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='30649' and id > 2471246 and id<>'2471246' order by id asc limit 5