价值工程的工作程序中，方案评价属于（）阶段的工作步骤。

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SQL Error: select id,body,options from ***_enewstiku where sourceid='27079' and id < 2244610 and id<>'2244610' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='27079' and id > 2244610 and id<>'2244610' order by id asc limit 5