研学旅行体系中高中阶段以（ ）研学为主。

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SQL Error: select id,body,options from ***_enewstiku where sourceid='26575' and id < 2214876 and id<>'2214876' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='26575' and id > 2214876 and id<>'2214876' order by id asc limit 5