脾气主升的作用主要体现在（ ）。

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SQL Error: select id,body,options from ***_enewstiku where sourceid='25605' and id < 2154650 and id<>'2154650' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='25605' and id > 2154650 and id<>'2154650' order by id asc limit 5