企业在工程投标及签订合同阶段编制的估算成本计划，属于（ ）成本计划。

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SQL Error: select id,body,options from ***_enewstiku where sourceid='25925' and id < 2176058 and id<>'2176058' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='25925' and id > 2176058 and id<>'2176058' order by id asc limit 5