SSD建模时，Functi。n功能配置的基本原则有（ ）。

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SQL Error: select id,body,options from ***_enewstiku where sourceid='29472' and id < 2398634 and id<>'2398634' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='29472' and id > 2398634 and id<>'2398634' order by id asc limit 5