关于“三级预防策略”的描述，不正确的是（ ）。

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SQL Error: select id,body,options from ***_enewstiku where sourceid='25399' and id < 2139948 and id<>'2139948' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='25399' and id > 2139948 and id<>'2139948' order by id asc limit 5