固定的栅栏是一种（）装置。

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SQL Error: select id,body,options from ***_enewstiku where sourceid='25758' and id < 2164478 and id<>'2164478' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='25758' and id > 2164478 and id<>'2164478' order by id asc limit 5