激励力、效价和期望值之间相互关系的表达式是 （ ）

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SQL Error: select id,body,options from ***_enewstiku where sourceid='29331' and id < 2387977 and id<>'2387977' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='29331' and id > 2387977 and id<>'2387977' order by id asc limit 5