学习困难综合征的表现不包括（ ）。

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SQL Error: select id,body,options from ***_enewstiku where sourceid='30653' and id < 2471336 and id<>'2471336' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='30653' and id > 2471336 and id<>'2471336' order by id asc limit 5