微表处理施工前的试验段的长度至少是（ ）。

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SQL Error: select id,body,options from ***_enewstiku where sourceid='26169' and id < 2192852 and id<>'2192852' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='26169' and id > 2192852 and id<>'2192852' order by id asc limit 5