儿童认识到客体尽管外形发生了变化,但其属性不变，这说明儿童的认识发展进人具体运算阶段。 （ )

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SQL Error: select id,body,options from ***_enewstiku where sourceid='32262' and id < 2568631 and id<>'2568631' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='32262' and id > 2568631 and id<>'2568631' order by id asc limit 5