现有的有关领导理论可以分为（ ）三大类。

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SQL Error: select id,body,options from ***_enewstiku where sourceid='29593' and id < 2405610 and id<>'2405610' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='29593' and id > 2405610 and id<>'2405610' order by id asc limit 5