返回系数大小对增量保护欠量保护灵敏度的影响说法正确的是（    ）

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SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69481' and id < 4500238 and id<>'4500238' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69481' and id > 4500238 and id<>'4500238' order by id asc limit 5