如果对图书市场进行细分，应考虑的变量有

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SQL Error: select id,body,options from ***_enewstiku where sourceid='28616' and id < 2336574 and id<>'2336574' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='28616' and id > 2336574 and id<>'2336574' order by id asc limit 5