把课程分为分科课程和综合课程的依据是（ ）。

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SQL Error: select id,body,options from ***_enewstiku where sourceid='30344' and id < 2452715 and id<>'2452715' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='30344' and id > 2452715 and id<>'2452715' order by id asc limit 5