个体能力发展水平的差异主要体现在（ ）上。

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SQL Error: select id,body,options from ***_enewstiku where sourceid='31600' and id < 2530720 and id<>'2530720' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='31600' and id > 2530720 and id<>'2530720' order by id asc limit 5